Yep, thats why I am not concerned building my habitat out of steel like a ships hull(1/8X3 ribs, 14ga skin). The cab and chassis curbs at ~14.8K i removed a few hundred in the tire crane and lift bars, and am moving much of the mid structure(arch and tire) to the rear so I am starting a little under 14.5K. 1078 curbs ~17.7K, so i am figuring a all up weight approaching 20K should get me in the balance ballpark. now I don’t have the 600# of crew weight included in that curb figure, but I am not counting the added weight for the fairing and cab mods which will mostly cancel that out, or slightly lighten the front axle weight
i bought 4.5K in steel so far and I need a little more to finish the tire crane, mount and interior structure, so that will have me approaching 19K plus a few hundred for internal finish. Will have ~800# of water, but that is located near the trucks CG so that should mostly add axle weight equally…