[Adger Smith]

Larry.
remember the '66 vette I had...Built in winter of '73/'74
I did it when I was 24 years old.
There are tricks. I used the stock frame rails, cut them loose and just reversed them side to side and inward.
That gives 7" per side the way that factory frame is angled then reversed. The glass floor is just sectioned and laid back in place...no tin work, all glass.
Not an equal lengths 4 link, but worked quite well.
The rear cross member was another trick to get the drive shaft through and cut back for the tire height clearance. I think I still have pictures of the build in an old scrap book. It was legal. At first in M/P with the transverse spring. There are a couple benefits to using a Dana. Figured that out when building it. Esp. if you keep the engine in the stock location, like the rules back then.
Then NHRA made it a gasser and I converted to coil overs.
What I built was very similar to what Kenneth Counts and Tom Weakley were building. Funny thing is I never met them till at the track and after the build. Kevin Hall is supposed to have my car. Not sure how much of what I did is still there. I will be glad to help if you decide to go that way.

Larry, Buy one of my Gen 3's. they are going to be legal. Finish the Quay car you already looked at. It is farther along and has a 7.50 cage, now. I have Lewis Mosley's SS/G BB Gen 3 too. It came to me with a G-Force in it.