GD Momentum 350G or similar

[johndeerefarmer]

Looking at a Grand Design 350G Momentum toy hauler. Anybody using one to haul a XP5? Should fit length wise.
Ramp door is rated at 3000 lbs. I am gonna guess mine with Long travel, beadlocks and larger tires weighs over that.
Wonder if I could or should lay a plank on the ramps where I drive up to help distribute the load?

Or if you have a different brand TH, what do you have?

Thanks