I'd think you should be fine with a 1000/10000 WDH. My Salem is 7600# empty and that's what I've been using to tow it. Your 29hfs is the same length and 600# lighter (dry.) The only issue I could see is if you put a bunch of weight in the garage and take a bunch of tongue weight off, but you're talking about batt/tanks/genny in front, so I wouldn't think that would be an issue.
2015 XLR Hyperlite 30HFS5 (mods being performed regularly)
2009 Salem LA 292fkds (gone)
Nights- ('12)23 ('13)23 ('14)15 ('15)31 ('16)25
2014 Harley Davidson FLHX (XLR cargo)
2014 VW Jetta TDI (diesel sipper, camping support vehicle)
2011 Ram 2500 CC 4X4 CTD, B&W Companion (toy hauler hauler)