I believe you are talking about a 1/2 ton towable product. If so, your levelup is different then the motorized levelup folks are talking about in this FR3 section. I read your posts in another thread here and I dont think you are getting the information you need to address your concerns. Your jacks are adjustable (to a point) which could solve your wheels off the ground issue. You might be better served by posting in the Crusader section where folks have direct experience with your type of unit.
Vaya con Dios
The recipe for perpetual ignorance is:
Be satisfied with your opinions
and content with your knowledge.