You could run these adjusters. The adjusters you show won't let you run a shock through the middle. These are the same style Mark Stielow ran in the Thrasher 69 camaro and Carl Casanova ran in his 68 Camaro. Here is my add in the for sale section. I was going to run these but went with DSE Speed kit 2 and Quadralink. Gaetano has seen my car.
https://lateral-g.net/forums/showthread.php4?t=39350 If you are interested let me know, make offers. I just finished the install of the speed kit 2 yesterday so need these gone.