I've heard of people that own decent drivers to begin with, paying $50,000 for a rotiserrie restoration. That's with them already having the car. A top notch paint job today, especially when asked to include the bottom of the car will easily run $10,000 of that. You then have to consider searching for correct, dated parts and possibly refinishing those to correct appearance, stamping, chalk marks, etc. That alone covers the body and interior on any car, be it a 318 or 440. Now you pay an additional $15-20,000 for the Hemi motor, and you're at $70,000. Consider that then you'll have to get correct brackets, motor mounts, K member, etc. Then you figure a waiting time of 6 months to a year while you go through the process. I can see why they get it. Certainly anyone can buy a Hemi and install it in a 318 car for less, but the two cars would not compare when done. It's the attention to details that get's expensive.