Sounds good. A 29' rig does seem like an awful lot for a Tahoe, at least length wise (tail wagging the dog), but if it's stable and you have the hitch set up right you should be OK. You've already confirmed your within all weight limits.
It doesn't sound like you are towing it all that much so for me, personally I'd roll with what you have for now and in a few years if you need/want another truck, make your move then.
As an aside, I miss having a pickup truck as I've always towed wtih pickup's of one make or another. In lieu of having to maintain, register and insure 4 vehicles, I bought the Expy a few years back and I'm glad I did.
I initially had a Bellmont 5x8 Utility trailer with 1' high side rail that I enclosed with steel sheet metal (welded). Bellmont makes a good utility trailer, it's not the cheap Tractor Supply or Home Depot type trailers, they have a 3500# axle and 15" tires.
The Bellmont got a bit small for me so this year I pulled the trigger on a new NNT utility trailer, with 2' high mesh sides, but this one is 6'4"x 12', so substantially larger. I have a large barn I keep it parked in and out of the weather.
So, when I need to haul something I just hook up the utility trailer, get what I need and then park it back in the barn. It's not as convienant as a pickup by any means, but it gets the job done.
Mabye that's something you could consider if your in need of a pickup for the time being? My trailer, new out the door at the Tool Shed of America in PA was $1,399 and it's A LOT of trailer for that price (well made/heavy materials).