Do some factory tours and then suggest some changes to frame/susp and see how they react. I toured the new Weekend Warrior factory and was impressed with what all they told me they could do within the boundries of not having to redesign the whole toy hauler but just to add different things that I requested here and there to the interior and things on the frame. Going up this next week to tour the Forest River XLR factory and see the difference between the cookie cuter manufacturers and a factory direct like Weekend Warrior.