Well, I do have pictures of 2 Raptors on end and my dirt bike next to them, all in the bed of my truck. Straps galore. That's when all I had was my pop up. With this rig I stick to Raptor 700 next to camper portion and Raptor 350 towards the front. Generator goes there sometimes too. Then another Raptor 700 in bed of truck along with dirt bike if I get a hankering for it. I didn't open that link from above but adding water, at least on my rig, lightened up the tongue weight. You could get away with 1 propane tank as well for a weekend and lighten it up a bit more.
(2) 100 watt Renogy Solar Panels
30 amp Renogy Wanderer
2001 6.0 2500HD Gasser (sold)
2009 Ram 2500 6.7 QCLB Cummins Power