Well, I caved and we traded in the half ton Avalanche. I now have a Dodge 3500 with the 6.7 Cummins Diesel. Really happy with it, I have always loved the Cummins engine, and now it sits in front of me for towing my TT.
I have more towing ability and weight capability than I will ever need (the most available), but the peace of mind is now priceless. Before the trade in, I bought a second hand Reese 14,000lb equalizer and dual anti sway bar system, so I will go ahead and use that anyway with the 1 ton Cummins. So now, instead of limiting to slowly towing to nearby campgrounds this summer, we're planning a trip to the Coast.
I think the many threads and messages here on this board brought the reality of this home for me. I would have put too much expectation on my half ton. So, here's to hoping for a good camping season... Thanks for the guidance and advice everyone!