If you are building the car for resale, how much do you really expect to net? The Speedway body is $5K and the frame $2K. The motor, trans, and rear have been sitting and will probably require additional $$ to make nice. You gotta buy/make interior and probably a lot of misc stuff.......so the real net is the sum of
(1) how much cheaper than market value that you can get into the existing stuff and (2) how much labor you can add. The new stuff that you would buy does not necessarily increase your profit.

Let's say you can buy the entire car for $3K and finish it for $12K additional....you have $15K in a car that you can sell for ???

I recommend that you look closely and truthfully estimate the cost.....It's gonna cost a lot more than a low estimate. Where you might make more money (relative to your time expended) is to buy the thing cheap ($2K) and sell it to some other guy who wants to finish it for himself......Less risk too.

mike in tucson