How much would it be to repair my Honda cbr F2?

So i have a 93 Honda cbr f2, 600cc, 18,000 miles. Its been sitting, cranks but won't start, it has a new battery. I'm pretty idiotic when it comes to motorcycle repairs since I'm a beginning rider. Basically I think it needs its carbs cleaned, re synched, spark plugs changed; also the on/off switch is stiff, horn doesn't work, and the throttle feels stiff. Any ideas how much itd cost to get this worked out, btw I live in northern California.

2003 pagsta 50cc transmission?

I'm buying a 50cc pagsta and I'm worried about repairs. The engine is a common one that I can easily replace or repair but it has a strange non CVT 2speed automatic trans with a chain final drive I'm not sure I can find elsewhere. Are there any other chain drive 50cc trans for a Honda engine I could replace it with should it die on me?

How to fix a cosmetic damaged exhaust?

I've bought a used bike (Honda CBR 125, Remus exhaust) and the exhaust has some dents in it but it sounds great and I don't want to replace it. Are there wraps or repair services or anything to sort it out?

16yo, 6 1, 165lbs, help picking a dirt bike?

M a guy, 16, 6 1", and 165lbs. I'm getting a dirt bike for trail riding and riding around lake pleasant here in Arizona and I think I've narrowed my choices down to the honda Crf230f and the crf250x. Any ideas? Price isn't really an issue.