Advice on towing a 5th wheel

Looking for a truck was the most difficult part of our shopping. We looked at used 250/350's for the longest time. Most prior years there wasn't a significant difference in payload other than springs and I was surprised to find there wasn't much difference in price either. I knew I wanted diesel and the trucks 8-10 years old were still so expensive, had over 100k miles on them with no warranty we decided it made sense just to buy new. I went with the F350 a because pricing against the F250 wasn't much different. The payload was close to max on a F250 for the FW we purchased and I also didn't want to be in a position that I couldn't buy a bigger FW later and have to buy a truck all over again. In short, you can't have too much truck, but it's easy to have too little. If you are buying new anyway the prices between 3/4 and 1T aren't much different. And the 2020/21 trucks have a LOT more HP, payload and torque than previous years no matter what brand you buy. They're pricey but from the shopping I've done, they hold their value.