Back to your original question, that’s a lot of work for an easy fix.
What are your plans for the truck? Working it, daily driver or a toy? I still have, as many others, kept the factory rims. I’m running radial tire with a tube, while others are running bias ply with tubes. Keeps the original factory look. As far as the drivability, for a 70 year old truck, with the weight capacity it was built to handle and a i-beam front axle, it is what it is!
Jim