I've never had one Ken, but an Uncle had one (32'?) with the Triton V10, about the same year as you are looking at. He drove that thing 70 mph every where, up every hill, on every flat, effortless....he was a guy in a hurry with money and gas to burn, and he did. I don't remember what he told me he was spending on gas on a family camping trip, but I remember being horrified!
It had plenty of power, he towed an 18' ski boat with it, don't know how it would do with your Queen Mary.....