Hi Malone. Sounds like you're putting a good amount of thought into the intended use of your truck & camper and some priorities for both. Based on that, here's some thoughts:
For now, you can put most of your focus on finding the camper that meets your needs. Once you find it, then you can match it to the right truck for the job. Many rv'ers have tried doing it in the opposite direction, only to learn they purchased the wrong truck (or tow vehicle) and wind up needing to make a change.
A VERY GENERAL rule of thumb is that short bed campers (with or w/o slides) and 9-foot, non-slide, long bed campers can be carried on srw 350/3500. 10 & 11-ft long bed campers are best on a dually. There's many exceptions, but it's a good starting point. We've had a super cab and now crew cab and find the crew cab provides significant benefits in space and functionality.
Both our campers have been wet baths and we've had no complaints. An often overlooked benefit of wet baths is they are often one-piece fiberglass showers, with no seams and minimal chance of leaks. With dry baths, some owners comment on having water get outside of the shower onto the floor, cabinets, etc. To me, the primary con of a wet bath is the limitation of one-person access. In contrast, dry baths allow one person to use the sink or toilet, while another showers.
Best of luck on your future purchases!
