Skip426-understand your concern, hit the scales with a loaded and wet TV and 5er... Crunched the numbers and all is well (even stashed an extra 30 pack to be safe)!
SmokeyWren-backed the rig up onto 3 - 2x6's, one stack on each side. That 4.5 inch lift got me 2 1/2 inches difference from front frame to ground and back frame to ground. Still a little short on rule 1. Rule 2 is good, 6 inches on the money! Wonder if a 4 inch lift and a taller tire would work? I had considered lowering the back of the truck a little but felt it easier to raise the trailer. But, now that I think about it, it might make it a little easier for my old arse to climb in the bed!
1994 27ft Shadow Cruiser Fifth Wheel
2006 Ford F150 4x4