Mike, just to give you a ballpark....mine was put together with all new parts (non donor build) and if I added all the receipts together I'd be just short of $50k
here's the quick breakdown of major stuff
complete kit from factory five $19,000 (i think the kit is now $20K)
IRS suspension $2500
wheels/tires $2500
Paint and body $8,500
crate motor $10,000
Trans- $2500
Then there's the little stuff....Upgraded brakes/rotors/ upgraded leather seats/ rear end/gauges, electrical/ chrome, goodies, etc not counting tools I didn't have and basic shit and doesn't count the 400 labor hours into it
If I was to do it again, I'd save about $4000 on body/paint and use someone else, but the upgrades would easily eat the $4000 up
When it's all said and done, I have a car that's going on the market to maybe get $30,000
There are guys that recently have built complete for $20-25k. Those are guys that buy the base kit for $13k and buy a wrecked mustang and strip it for all the parts needed to transplant to their new chassis ...then do body/paint themselves -this adds labor time (rebuilding the used parts you had to take off something else)
And on the other side, there are guys with $100,000-150,000 into replicas too