I think your 850 dollars is doable if you don't mind china parts on your trike. some searches here will tell you which calipers, master cylinders work for the front and back for cheap. air filter, new chain, headpipe, try rebuilding the carb, new petcock for the tank, and you'll probably be riding in a weekend. these machines are so simple, I wished my 200x project was complete like your, I would have kept it, instead I traded it for 3 partial 185s and 200s projects. jim