How get truck and TC with ample weight capacity

How much you carry is very personal to each person camping. When we had a SRW, we always made sure we brought the minimum. That included carrying empty black/grey tanks and minimal water in the freshwater tank. I could easily see 600 lbs being plenty. After all, people camp with less than that with tents.

But, my F450 has much more capacity, and we no longer worry about what we carry. The only way that it would possibly be an issue is if we went out of way to carry too much.