1972 Chevrolet 4x4 1/2 ton vs. 3/4 ton

[cwilkie]

I am still in my search to find a 1972 Chevrolet 4x4. Since I have yet to purchase a truck I was wondering what the benefits of going to a 3/4 ton would be. In time I plan on getting a 5th wheel camper and putting a slow plow on to push snow. Would a 3/4 ton be better for pulling a 5th wheel? How hard is a 3/4 ton on gas? I have an extra 396bb and a th400 that will be going in my future truck (if it doesn't have one already installed). This will not be my daily driver where it will be my go to vehicle when some work needs to be done. I can’t justify spending $45,000 on a new truck when these old vehicles are better quality. Please give your opinions whether they are good or bad.