I have made mention to that obvious fact too. The thing is that this isn't anything close to building one from the ground up. This is a simple bolt together project that anyone who can twist a wrench can do.
I addition to the body never being able to meet crash standards--these cars are serious death traps in minor collisions--what about emission standards? The huge problem is that if the government didn't keep these things regulated, this would be an avenue where people could get around emission laws.
There is a fair market for off road use cars. That market could use such a chassis. You could probally do it illegally because it would be hard to keep tabs on it. Dice the old chassis up and hide the parts in empty cans set out for recycle pickup.
I don't know how it goes with "replacment parts." I have been part of a team doing structural repair that required replacment of the firewell/vin tag area. It required dot, state, and manafacturer documentation, with all officials present when the vin tag is removed. Because I was sub contractor, I wasn't there when the vin tag was removed. One of the officials--I think it was the manafacturer--took possession of the vin plate while the repairs were done.
The thing is that the car should have gone in the trash, but it was repaired. That car-- a new 85 model with about 1.5k on the clock--basically needed a replacment chassis. The problem was that they didn't offer a replacment chassis, so the body man built a chassis on a mangled floorboard.
If your car has a rusted beyond repair chassis and a "replacment chassis" is availible, is it leagle to use the replacment part? You can replace frame rails. Often rails have vin #'s. The outar structure, the firewall area, on my car has a vin # on it. I belive that part is available too.
Under current regulations, I cannot see how the car can come with a title because it would have to meet todays specks, something that aint happening.
I'm sure that the chassis comes with a SERIAL NUMBER