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

Alpenlite is/was a very well built rig. They are more common on the west coast since they were built in Washington. Went out of business around 2008 and in the last couple years had some problems with the Lippert frames. Prior to the last years they made their own frames.I own a 2000 model Alpenlite and have owned probably a dozen RVs in my time but this in my opinion is a good one. Quality.