If you're going to buy a new truck to tow, I'd recommend at least a 3/4 ton crewcab short bed with heavy duty towing options, at least 3.73 axles, large gas engine (if you want to stay with gas) or diesel, factory brake controller, towing mirrors and other equipment you want for "creature features". I prefer 4x4 as quite often a 4x2 won't have enough traction to pull itself out of wet grass or even slightly muddy terrain.
If your DW is giving you the "go ahead" to get yourself a new truck, by all means, GO FOR IT before she changes her mind !!!!!!!!!!!!!!!