The way I see it you have 3 options:
1 - Cut your losses and sell it as is for $5-6K, maybe a lil more. its what the market will bear
2 - Part it out
3 - Finish it and sell it for a reasonable amount

Ive been following the FS thread for a while cause I am semi keen on the driveline & diff to get my coupe running again while the new motor is built, but I have no use for the shell and other parts and $10K is too much for me and I daresay for most people interested in it for this reason. Even someone looking to build a 1200 exactly this way is staring down the barrel of at least $5k to do paint & get parts made, wiring, tune, rego etc and there are enough already finished 15K 1200's with some pretty sweet fruit out there.

Just my 2c. Good luck with it, and if you do decide to part out please shoot me an email - copey86@gmail.com