We have a 2014 Octane T29A. It is 1' shorter than the T32C, but weight is real close. We love it and have around 10,000 miles on it so far. If the T32C was available last year we would have got it for the slideout's with the extra room. We travel with 2 - 90# Labradors and usually a grandchild or two. Definitely get the 15AC. We were talked into the patio deck and never used it. Just a heads up about tongue weight, ours runs right at 1,950 # by both tongue scale and Cat weights. That is with empty tanks. We do have the 4K generator option which probably adds some tongue, just don't be surprised.
Good luck with the new Octane, I'm sure you will enjoy it for many wonderful journeys making memories.