I would agree that you probably won't be able to tow the 7500-10000lbs you need to after you've loaded the coach and checked your weight. Our Sportscoach is rated for 5000 (GCWR 32,910 lbs/GVWR 27,910 lbs) with a 7500 hitch, 340 hp Cummins and a 6 speed Alison 2500 trans. With everything we would need to pack, our fully loaded weight was under the GVWR but our rear axle was close to the max. We only tow a 2009 Saturn Vue (3700 lbs- 4200 lbs with the hitch and tow bar) so there a little room under the lid. Having said that, I think I'm right at the limit with the 340 hp as we completed a 5000+ mile round trip MI to CA this summer and experienced some pretty steeps grades (+6.5%), and while we didn't have any problems a couple of times our speed dropped 30 mph during a long climb. If at all possible, go for the upgraded trans (higher torque) and additional hp.