Old School vs Magnum on 86 Dodge W100

In my opinion, it does, but I am sure there are differing views on this matter. I have re-ringed a coupla engine in the past, with worse wear than you have, and had much less-than-satisfactory outcomes. So anymore, I'll always re-bore. Good bores and good ring seal is a fundamental of a good running engine. And with the kit, you get all the other parts, like a new oil pump, which I always replace. If the truck will be kept for some years, it makes sense to me to do it as good as it can be.
Thanks for the input, I agree. However, got BAD news this morning from the machine shop that both heads had cracks in them - so we're back to square one. My son just learned a hard lesson about buying an engine he knew nothing about. Total loss at this point - except the cost of experience. Now I have to decide if I try to get some Reman heads for the Magnum ($450 at a minimum) or tear the original 318 LA down and see what's involved in rebuilding it. Heads may be bad on it also. 1 step forward, 2 steps back...