Finally purchase a 5th wheel and new truck. Thanks to all.

One thing to consider is the new truck is quite tall, maybe causing your MS to sit nose high. I hope not for you but my Excel was slightly nose high with our 15 GMC dually but is much more pronounced when hooked to the new Ford. I have good clearance of about 6.5 inches at the rear of the bed and about 7.5 in the front so okay there. I will have the trailer leveled to the truck.