Decision, Decisions

I've looked at a lot of TC but never a NL. I certainly wouldn't pay that much more money for less space and less options. As for your tanks, my camper has 33 gallons fresh, 22 each black and gray. My family of 4 can go 2 nights easy, 3 nights if we're careful. 4 nights might be possible if we're very conservative on water. I don't see how you could expect 3 people to go 5 or 6 nights on the NL tank sizes.
I take it you liked the AF 990 better than the 992. Just curious why. My preference would be for the 992. It's basically the same as an Eagle Cap 995, which I love.