Body?
 

Where can i get a prepainted body for the Jato Nitro? and what size? i want to order it online

I am not sure. I would email mike and ask him.

The only cheap pre-painted Jato body would be the Traxxas one, other than that a custom job is going to cost a bit more.

I'll second the Traxxas online store.

Otherwise, you might try RCUniverse and search for bodies. Some guys paint them for a hobby.

here is a link to a lady's sight that paints bodies for several of the guys at the local track. she does awesome work and can paint almost anything. http://www.dalercpainting.com/