My "dry" tongue weight is almost 300 lbs lower than that toy hauler
. Trailer weight is about the same. It's a step in the right direction. BUT what happens if the tongue weight is over your hitch rating and payload rating. Are you ready to buy a new 3/4 ton truck??
I would only buy if the dealer allowed you to hook it up, load it with your toy, and WEIGH it. Dealers around here will not allow that. They don't need your business that bad to risk damage to a new unit. BUT in your situation, you have to much to lose if you don't.