Thanks everyone for the replies! I kind of already came to the conclusion that the trailer would be too much. I wasn't prepared to see a pin weight quite that high - I had expected to be only a couple hundred or so pounds more than the travel trailer.
I agree on the maneuverability, but I'm thinking in terms of how much trailer is behind the the tailgate of my truck!
Any suggestions on a lighter 5th wheel bunkhouse to consider? I'm pretty happy with the current rig, but playing around with ideas. A 4-5 ft shorter trailer would make a pretty big difference in the types of places we're looking at going. 33' overall right now starting at the hitch ball, so even a same-sized 5th wheel would help quite a bit potentially!