Have u tried to contact Rexhall????
They are still in bus.. and i would hope that they would point u in the right direction ,, as far a manual...
What probs are u haveing ,,, or what do u need to know ??? we can help u out if it's within our minds ,, i think
I have found RV owner manuals to be less than helpful. The owner manuals for the actual appliances and the wiring/plumbing diagrams are much more useful IMHO.