Never consider the Dry wt, because it will be a rare that it will be towed unloaded except when you take delivery or sell it. Use the GVWR when calculating hitch capacity. And if you add the optional Island, it will increase the weight up front.
KZ states the GVWR is 14,000 lbs. Within the range of a 15k hitch when 5er is maxed out.
We have a Reese 22k in our 2010 F450 to carry our 20k GVWR Suite. Would have gone with more, but Reese doesn't always have the right size.
On Edit: They have some really interesting floorplans.
2014 Mobile Suite Estates 38RSB - custom home
2014 F450 KR CC 4x4 ...... his office
2015 Lance 1172 - traveling Motel (solar and generator)
Working Fulltimers since 3/2005