You have alot of options with that car. There are a couple places that sell disk brake upgrade kits, Fatmans sell R&P stuff along with the brakes. Its a good solid frame and suspension, worst problem is the brakes and the shock mount is on the upper control arm, which can be moved to the frame. Next thing is the engine, if you keep the flathead, most want to go with a T-5 transmission, or bolt on engine mounts for a small block. Only thing with a small block is the steering box, you need that funky exhaust manifold from a 273 that wraps aroung the column. For more info on 318 swap, check out shadowcustoms website, he's posted here and on the HAMB. I went with the Dakota because of the costs of all the bolt on parts, I got my frame from the local pick n pull for under $50. You can use the rear axle too, but I went with a 8 3/4 since I'm putting in a 383. Lots of stuff on early mopars on the HAMB, getting more popular.