Perhaps the most satisfying move I made was to automate the dust collection system. I used the iVACPro system to link all machines to the dust collector. When I turn on any machine in the shop, the dust collector fires up and whisks the dust into the bin. The system also has a programmable delay to allow the dust to make it to the bin before the dust collector shuts down. I set my system for a five-second delay. The system works flawlessly for my band saw, planer, and router table at 115 volts, and also my table saw and jointer at 240 volts.
First, as most eager but hesitant potential hobbyists realize, you have to be much more thoughtful about tool selection. A 14-inch band saw? In your dreams. In a small space, you're going to have to rely on bench-top or handheld tools. (It is possible to forgo power tools entirely in favor of hand tools, but that's a discussion better left for another time.)
Electricity was something we didn’t want to worry about at all in our van, so we went big from the beginning. We bought Renogy's 400-watt solar kit and two VMAX 155ah batteries. We mounted three of the panels on our van’s roof, and the fourth we attached to a folding stand made out of PVC so we could roll it out as needed. While the system works great and keeps us charged up, in hindsight it was a little bit of overkill - especially since we added a battery isolator.