Well, finally got everything setup how I'd planned. MorRyde hinges, tailgate re-inforcement and their tire carrier. Then mounted the Titan Tank, filled it, then loaded up my heavy 35" spare.
Thoughts after driving around for a bit. Seems alright. More movement when I rock the tire, however I'm sure with a couple adjustments, I could sort that out. At least there's no noise while driving. A minor issue is that the piece Titan Tank gives you to fit the spare tire on doesn't extend enough to fit a 35x12.5 tire on a stock JK wheel without a spacer of sorts. Fortunately I had one from when I used the stock carrier. Annoying, but not the end of the world.
A much bigger concern is the fact that the hinges cannot support the weight. The tailgate drops by almost an inch when I unlatch it, and unless I lift it up when closing it, it rubs on part of my bumper. Have to say... this A) really bothers me considering what this setup cost (tire carrier and reinforcement setup was ~$700 CND with shipping + 200 something for the hinges - I forget what I paid for those). And B) is not what I was expecting after reading up on this. It'll do for now, and seeing how I'll rarely be using the tank, it's probably not the end of the world. And when I do use the tank, odds are I will not be in and out of the rear area. But that doesn't change the fact that this really bothers me. Eventually it looks like I'll have to go with either a dedicated bumper setup with a tire carrier or the AEV arm - which sucks, as I like the option of not being tied to a specific setup.