Mechanic I hired to install my engine didn't install it properly and the bolts are coming out?

So my sisters husband and his dad are "mechanics" this is what they do for a living. About a year ago I hired them to install a new engine in my car. They did the job. My car sat because I lost my job and I couldn't register it. Anyway now that it's legal to drive my husbands coworkers took a look at it and found out that all the bolts are loose, or just put for show. After they did the job a year ago they wanted more money because it took them more time than expected. They said they needed to install the a/c band and that they would finish installing the band once we have them 300$ more. That was insane but I said no. We paid what they charged and that was that. When my husband found out that the job was a Mickey Mouse job. My sisters husbands answer was "you owe me money" and my husband said "you said the car was good to go" my sisters husband just laughed. We live in Los Angeles. What can we do. We have a 5 month old baby that was in te car as well. We're taking it to Honda to get it evaluated. What can we do legally? They are street mechanics and I'm sure not the first victims of their scams. We thought we could trust them

1985 mercedes a good idea?

This little old nice guy wants to sell his 1985 mercedes 190e i want to daily it. It has a rebuilt tranny only 4k miles on it and a new catalytic converter 100k miles he only wants 1000$ i heard they are surprisingly easy to work on yourself i'm 16 i have a steady income for a 10th grader anyways and don't recommend any hondas or anything because that's never going to happen. I live in northern wisconsin i know its rear wheel drive but everybody up here has to learn how to drive in the snow one way or another and i would like to do it in a nice car i would actually like like and old caddy audi or mercedes.

Can anyone fix this Honda Oddessey 2000 TCS PROBLEM?

I own a 2000 Honda oddessy and when I turn on the car if it is cold outside the TCS light turn on and I can't shift my car into drive only reverse and 1st and second and I usually have to wait for the car to heat up with the heat on and restart the car after a while for the TCS light to turn off and for me to use drive.

Anyone ever have this problem or know what it could be?

Buying a 300ex with a couple issues?

A real good friend of mine said he'll sell me his 99 300ex bored over 20. The carb needs adjusted but he said he doesn't mind helping me do it since ill buy it, and it doesn't have rear brakes, although his dad said he wanted to put new ones on and replace the front brakes. It runs drives and shifts great though, he's only asking 1300 for it. Is it worth 13? I thought it should be since its a honda.

Added (1). I also forgot to add. He just rebuilt the top end and put 400 into it over the winter.

2 stroke scooter just stopped running?

I ride a 2001 honda elite. I was simply riding down the street and the scooter just shut off out of nowhere. The battery is pretty new so I'm not thinking that is the issue. Only thing I could think of would be that it is out of oil. The scooter has a built in pump that mixes the oil and gas for you so I'm hoping that is the only issue since I can't even remember the last time I had to put oil in it. Does that sound right or could it be something else.

Install front license plate bracket myself, or at dealership? Cost difference?

I know it'll be cheaper to install it myself, but I'm afraid to damage the front bumper since I have to drill holes to attach the bracket. If a dealership does it they'll know exactly how to do it since they do it all the time.

It's Honda that I'd be dealing with. I know they're expensive, but would a bracket installation really be that bad through them?

If NASCAR let Nissan or Honda in would you quit watching?

I would NASCAR was brought up by American car manufacturers. It'd be assinine to let another foreign brand in. If anybody should come back it's Dodge. If NASCAR does let Nissan or Honda in I'm done watching I'm sticking to dirt racing.

Are Honda and Toyota 8 holes flywheels spaced the same between the holes?

Both cars are 4 cyl. I know some car makers share the same pattern distance at the wheel hubs (rims) like 100mm X 4. Honda, toyota and others share the same specs on the rims.
I wonder if the same applies for the flywheel. I'm basing my suspicion on the fact that the size of the mounting part on the crankshaft is almost the same size on those engines.

Am I in trouble in life? Looking for something new?

40 years old male
- self employed $50 an hour salary
- never been married
- drives a honda
- do not own a house yet!
- my bank account only says $9000…

Added (1). Yes I have a hobby and I spend about $20,000 in a year for that hobby.

Added (2). yes, I rent a townhouse. It costs about $2500 a month and I live in the bay area. You know how expensive rent in this region.