If it's done right and all the parts are there it's like paying for the work that was done and getting the car and parts for free.
The rest of the parts would be a big + or - depending what is there and the condition.
Easy choice when it's a 440 or in my case even a 340
If you plan on going big time restomod, hemi or EFI... it could be perfect.
I'm ok with getting upside down restoring the right car if I'm keeping it.