A good Sandman mockup will still pull good dollars. You've got one better than a mockup and one less than a full matching numbers so you'll still do alright. The $40-50k asking prices on some Sandman's are false inflation. A $10k Sandman with $25k in resto costs will be extremely lucky to get its money back. Your low outlay for the car, a $4000 donor car for all the missing bits and $10k in paint could very well get you most of your money back if shit hits the fan and you need to sell.