Why not just buy a Westfalia?
When I first began researching vans, I thought I wanted a VW Westfalia. Sure, they'd been out of production for 20-something years, but there were aftermarket parts suppliers and restoration companies around (because there was plenty of demand for the old vehicles), so I figured if I needed a part or repair, there were specialists that could get what I needed with no problem. Knowing what I know now, I feel very lucky to have chosen a Ford.
It's not that Fords don't break... it's that the old Westfalias break a whole lot more. I know one fellow who has a flawless restored Westy and another who's built a very nice vancamper from a VW microbus. Both spend outrageous amounts of money on repairs -- one says he's averaging around $500 a week in repair costs, and I'm not making this up.
Lots of people feel like there's a cool factor with a Westy that you don't get with a Ford, and I suppose that's one of the things that first attracted me to the VW's. But I'm really really glad I didn't buy one.