The manufacturer listed tongue weight for a toy hauler fiver can be a little misleading. There will be several factors that will determine your final tongue/hitch weight. What will be hauled in the garage and how much does it weigh? Is the fiver/trailer a dual axle or triple axle? Will there be a generator in the front compartment?
When we were shopping I gave up on trying to match up my tow vehicle exactly to the model and floorplan of toy hauler we were going to buy. There were just too many variables and unknowns so I bought an F350 dually with the heaviest payload package I could get. The only way I'm going to know the exact tongue/hitch weight and distribution is to run across the scales this month after we are loaded for the road.
Now, as far as the quality or workmanship of the makes/models you listed. IMHO it is a gamble. We purchased a new Newmar with a MSRP of $355,000 and the first 18 months we replaced the oil pan gasket, the DEF tower, the Oasis summer loop pump, crown molding that fell off, and several minor items repaired. Purchased a new Keystone Montana fiver with a MSRP of around $90,000 and the only thing that needed repaired was the clothes rod and emergency escape window latch. We have been in our current Heartland Cyclone for less than 2 weeks and so far the ice maker is broke, closet door hardware fell off, and several other small things I have had to re-do.
My point is none of them are built to the standards and quality of the automobile industry and be prepared to fix stuff.
