Did you survive the big crash but the bike didn't? I learned a neat trick for low cost body repair: drill holes along the edges where the body is torn and reattach the pieces with twisty ties. It looks like it has been sewn back together.

 

I used to race GP125. Yeah, back in 70s', many poor racers like me did that.
Sewing up with fishing line and put FRP patch from the backside of damaged panel. But, you know what? Bike was getting heaver every time I fixed... That is prettey historical method though. Now I do placstic welding. If you have every piece of plastic, you can put those back together with soldering iron.

 

Soldering iron sounds like a good investment.