GoWesty, a well-known Vanagon restorer and parts maker, recommends not buying a Westy unless you have at least $25,000 to spend overhauling it and replacing aging components. Even if you find a cheap Westy hiding out in a garage somewhere, be prepared for frequent breakdowns and expensive mechanical headaches unless you spend the cash to fully rebuild it.
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. 
Make sure to run ground wires wrapped around all lengths of flexible exhaust hose to prevent static build up, which can spark and potentially ignite. I chose the King 1.5 HP dust collector, with a 115 volt motor, so I did not need special wir­ing for it. A shop vac is a must, as well, used to vacuum out machinery, and to remove dust from furniture prior to fin­ishing. Finally, an air filtration system was installed to clear the air of tiny airborne particles. The King KAC 650 unit I installed does a nice job, has a remote control, and a program­mable delay – I usually have the air cleaner run for a timed two hours when I leave the shop.