I have a Bowl cradle and ride plate for a JC.

The ride plate is 20x8" and the cradle is the cast one from HTP Performance.

I paid 150 shipped for the cradle. Ill sell both for 75

Note, the bolt holes for the ride plate are not countersunk nicely, i did the best i could with a bigger drill bit. But they should/could use to be cleaned up

Let me know if you are interested