I guess you have to ask yourself what is your ultimate goal? Do you want to keep it original or street rod it? You can check sites like chassis engineering for motor mount kits, trans kits, rear end kits etc. If you drop a V8 in her I would suggest boxing at least the front of the frame for support. I have two projects both 46's one I'm street rodding and the other is all original. The one thats original is fun to drive and cool but needs some TLC. If you have the rescources to do the work yourself makes a difference compared to paying someone to weld and fabricate. Things to ponder. Here's a picture of the frame I've been working on. I need to take some more I'm a little further along. But I took two engine stands and made a rotesserie to ease the work. I have welded up holes in the frame that won't be used, boxed frame rails and getting ready to install mustang 2 suspension. I'm using Por 15 on the frame. Theres a lot of welding and grinding going on. Geez I'm long winded. Here's a pic.
Frame
