I decided to begin this project by first disassembling and cleaning all of the extra parts. I then worked on repairing the destroyed layers of graphite at the front of the extra chassis.
Now I have this Horizon Hobby TQ10 Graphite...
It is far from perfect (the chassis still needs a lot of work, for example), but overall I am excited considering that this is basically a bonus car being built from all of the extra parts. I am keeping it completely original, including the use of bushings instead of bearings and threaded rods instead of turnbuckles. As far as I can tell, the only parts missing are the threaded rods, the #6627 thrust bearing washers, and the body.