sn_85, Thanks for posting your build! I am building a very similar setup but with a 3500 SRW, an 8' bed, and a Kodiak Bear 8.0 Camper. I've run across a couple of questions I can't get a solid answer on. Maybe you can help? Thanks for sharing your experience! These are expensive rigs, and I want to get it right.
- Are you running airbags with the truck?
Yes I have air bags. They're the Air Lift Load Lifter 5000 bags
- How much does the truck weigh with Bowen Bed vs stock?
The Bowen bed was 40lbs over stock
- How much published payload do you have left after the bed install?
Sticker says 2180lbs
- Have you received the Bear Camper yet?
Yep, after some delays finally got it in January. It's totally awesome btw
- If so, how much does the Camper weigh? (Dry vs Wet).
I haven't weighed it yet, I'm probably scared to do so 
- How did you attach the camper to the tray?
The Bowen bed has side L-track rails. I had Zero Declination in Reno fab up some brackets to mount the camper using Torklift Fast guns
- Have you had any vibration and/or flex issues transfer to the camper?
Don't think so but I also haven't taken it on any rough trails yet
- Any must adds to the camper or anything you wish you had done?
So my camper started out "simple" and then progressed to something more robust and completely built it. Were all those things necessary? Probably not. I ended up going with a combo diesel and hot water heater. The heater will be great in the winter but the water system will have to be winterized. So some times I wonder if a simple water system would have been easier to deal with since we do a lot of ski camping. I went with a 12V 270ah lithium battery, 400W solar and full Victron components and have no regrets. It's robust and reliable. I would advise against any Goal Zero or battery station style systems. I would consider going 48V though. I avoided propane and also went induction. I love it so far. It's easy, fast as hell, and renewable energy via solar and dc-dc charging. Induction is the way to go and you avoid the weight penalty and having to worry about having enough propane. Also makes it easy to avoid too carry too many energy sources i.e. diesel heater for the truck, propane for the heater and stove and still have to have a battery.
- Is there anything you wish you knew when you started down this road?
Wish I would have been smart like you and got a 3500. I bought the truck during the pandemic when supply was ridiculously low and probably panic bought a 2500 that was on the lot. I have done upgrades to make it ride better but would rather have more legal payload.
Any help would be much appreciated!