Ernie,
To support your point of view, it's pretty easy to get from $25 to $50K and not be able to see it on the outside of the car.
- Labor for a turnkey minus versus a kit
- SO FE versus SBF
- Brembo brakes versus donor take offs
- IRS versus Solid Rear End
- NA versus blown
- T-56 versus T5
Can a builder/owner/car nut spot the elements of a $50K build? Of course, "period correct" is expensive, as is high performance. But build quality and component quality are very different issues.
At DVSF, you could see enough high quality low cost builds to answer the "quality concerns" question. I guess you had to be there.