I have built Street Rods for 30 years plus and did alot of C-4 C-5 Corvette suspension. I think you would be way ahead using the stock corvette crossmember and modifying your frame to accept it and bolt it in like it was stock. It would be a whole lot less work and you would have all the factory mounts. Check out one I did in a 48 chevy on my web site. Hope this helps.
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