Rex, Besides the wiring loom (with all the accessories) there's the bulbs of course, then the speedo clocks? exhaust? carburetor? and engine casings to accommodate the brake and gear change levers?
I guess if the c100 is a bit of a wreck then why not have some fun.
or you could save yourself a lot of time and money and buy a yamaha ybr 125
Bogger may have one for sale 2010 model I think