Motorcycle Identification

I recently pulled this motorcycle out of the barn it's been in since 1974. I know it's a Honda 90cc but can't identify the model. I'm repairing it so I'd like to know the model before I buy any parts. Motorcycle Identification Help - 1

It's a Honda CM91 scooter that has had a "rally kit" applied to it. Story here:
http://www.motorcyclemuseum.org/asp/classics/bike.asp?id=56

Very rare barn find. Congratulations.

From experience I can warn you that those pressed forks corrode from the inside, already thin walled they rust very quickly (easy to replace though, they are common to the more basic cub 90).