What's your hitch receiver rated at? With the weight of the hitch added to the tongue weight you might go over the receiver rating. But on the other hand toy haulers are often designed nose heavy with the expectation that a heavy load in the back, the so called toys, will decrease the tongue weight in actual use.
I have a toy hauler that I use as a plain camper and though it weighs only 4330 pounds dry it has an unusually heavy tongue weight of 950 pounds with propane, battery and full water tanks. Adding 100 pounds for my hitch puts actual total tongue weight at 1050 pounds, the limit of the receiver on my F-150. However when the trailer is loaded for camping, with heavy items in the rear, my total tongue weight goes down to 900 pounds. I use a tongue weight scale; I think it's a most useful device and essential for those working near the limits of their gear.
