Heres some pics of my progress, Just mounted the Onan 2800 with the anti-vibration mounts, the cover is covered with foam and lead sheeting. Added the hitch, the rear view cameras, one wide view pointed down for backing, the other a little narrower view pointed higher for driving. 7" screen toggles both cameras, works great cost less than $80 from Amazon for all. Have been coating the underside with several coats of ceramic paint.
http://s1276.photobucket.com/user/mcgiotes/library/Mojovan?sort=3&page=1
http://s1276.photobucket.com/user/mcgiotes/library/Mojovan?sort=3&page=1