I've been using 5th wheel toy haulers since 2004 for jet meets. This is one is a 2014 Voltage 3895. It has all you mentioned. 5.5kv generator, 3 AC, 2 x 30 gal gas tanks, 160 gal fresh water. I can haul 2-3 jets with equipment and golf cart. Usually a buddy stays in the rear garage bunk when on site. The primary mission for this one was campgrounds with grandkids with jet meets were secondary. Now that the family and grandkid mission has been transferred to a beach house this one is for sale.
There are pros and cons to everything. Feel free to PM me and I'll be happy to share my 2 cents worth about my toy haulers experience at jet meets. Good luck on your search.
Gary