When I finally have to cage my Ramcharger, I will just go down to this place and have them bend up some pipe

https://www.artmorrison.com/homepage2.php

Since I have a '72 Cuda in the shop right now, the owner and I will probably place an order for his cage first and they probably already have a kit in stock for his E-body.

Morrison's is about 25 miles from my door.