Alot of good info from everyone.
I say build up the 1500 and it'll suffice for most of what you're looking to do. I had my 1500 out on a trail ride with a bunch of full sizes and had zero issues keeping up with a power wagon. A good spotter, and line choice make up for lack of lockers. That being said, the PW is legit in its own right, but is it necessary to run out and buy one, I have to say no.
I see alot of guys on the trail in decked out builds that have no idea how to use 1/2 of what's on their rigs. The 1500 will be very well rounded for what you intend to do. You know best what your needs are. If the 1500 guys those needs and a few add ons make it more reliable and comfortable it's a win. If you feel you outgrow the 1500 and need a P.W to fill that void, than you'll know.
I personally think these 1500s are surprisingly capable. The front IFS is plenty beefy and there's plenty of us that put it through the paces. Personally, I was torn like you, and instead of dumping the 1500, I built a secondary rig for hard offroad exploring and keep the ram for the awesome pavement characteristics. I still hit fire roads, and go out in the ram, but beating the TAR out of a 3k jeep sits a whole lot better in my mind than a 25k truck.
Slap some good quality parts on that 1500 and have at it! If in another year you want a PW than go get one.