Need some advice on which 5th wheel units are "high end"?

Thanks guys!...some of the specific manufacturer names have been helpful and the info I was hoping to find. After a couple hours on rv trader it's pretty easy to see some are not going to be in my budget, but I am seeing alot of good used units that are falling in the range we are hoping to stay in. I will continue to learn and see what we can find.

Thanks much!