Who makes new/aftermarket 4x4 frames?

[Piratenation]

Hey everyone, I’m afraid my ‘72 frame is to far gone in the rear to repair. Other than Roadster Shop or TCI (releasing theirs soon) who makes a aftermarket 4x4 frame? I know there and a few other that make 2wd frames but can’t seem to find any other 4x4 frame builders.

I’m on the east coast in South Carolina and access to good 4x4 frames (that aren’t rusted) is extremely limited.
I attached pics of my rear frame and would like to know everyone’s opinion on if it can be fixed. Thanks!