You should do a practice run,with all gear and food/water weight. Do this around your home base and make it at least 100 miles. That's about two days of peddling and you will then probably drop a lot of gear probably the cart/trailer too. And Going two/three hundred miles on flat ground can be done by any one but cross states and into mountains is best done with minimal weight and a competitive bike. Personally iv done the bike cart both up hwy 1 and into Yosemite mountains::dead::. And it most defiantly,I would only do that again with an electro assist hub motor,but that's a two K investment,so I'm just sticking too two wheels on the ground for now. Right now I'm preparing a trip up north (tex. to co.) I'm down sizing my rig only a front rack. I do ride a mountain bike but it's a lightweight racing cannondale. Make your life eazy and gear down. And the single most parts effected by weight is in fact your wheels,because you have to spin them. So if you can't get your hands on a mid range bike then at least get some mid range wheels something with sealed bearings,from a proper bike shop. When on the road with that much gear you might start to drop a lot of it on the road,it can drive one nuts. Happy travels peddle hard.
