While I'm never against training and learning...however, with the new regulations that came into effect after the Humboldt crash, you now need 47 hrs of classroom lessons and 100+ hrs of behind the wheel training. The closest training facility to where I live is 1 hour away! So the end cost of the training would be well over $2K if not closer to $4k and take several months to complete. From my conversations with the regulators, to register a semi as a motorhome all the vehicle needs is a hardwired fridge, bed, and cooking facilities. So any semi with a sleeper should require little to no mods to register as a motorhome. Once registered as a motorhome I can drive it with my Class 5. I will also require air endorsement as I already have my "G" endorsement for pulling over 26K GCVW. I used to manage a Fab shop and still have connections there, so I would modify the bed after it is registered. I have a call in to the hwy folks to confirm whether I can leave it as a 3 axle or not to register as a motorhome. That said, since you can buy a tag axle motorhome (Newmar, Tiffin, etc) (3 alxe) and drive it with a Class 5 licence, I'm fairly confident this will not be a problem.