Very nice. You have your own run stand right there. The frame. I had a running truck with a low oil pressure engine that burned a lot of oil. I didn't want to swap engines until I was sure the new one was working as advertised. Thus, I needed a place to test it and the run stand was a fun project.
So, get that beast running and stopping. Then work on the other stuff as funds allow.
Here's my 1963.
Link to my 1963 project.