Good luck with your challenge. Don’t give up. Select a area of work and complete it. Assemble the whole car before paint. To select a rear end measure the rear end in the truck from backing plate to backing plate. That is the width you need. You may may have to move the spring plates but they can be moved easily. Most rear ends have disc brake conversion kits. I’m doing a 51. I found an I Roc rear ended for $100 at a junk yard. I think limited slip and posi are the same thing and you do want one. You want to smoke both tires not one. I would you move the pedals from under the floor to under the dash. You have to use residual valves if they are under the floor. A tug welder I would do on suspension, IFS, frame, rear end… Some use rig on the body but mig does not get as hot so I would use mig on the body. My first car was a 32 Ford five window coupe. I have completed 4 cars and am working on my 46 Chevy truck and my grandson’s 51. Good luck You can do it.
