I agree i wouldn't waste the money on a Dana 44 swap I would keep the TTB until you are ready to swap a Dana 60. The 60 is going to cost a little more money but if you really get into wheeling it you will find out that you want/ need a 60. Until that point I think that that TTB will hold up just fine

if it is your DD and you really want to wheel it on moderate to hard trails be prepared to trash the bed/ build some sort of flat bed like cooks and a nice front bumper that has some good protection for the lights and fenders. Other than that go for it