This doesn't answer your question, but as a side note, the Texas Highland Lakes Unit is sponsoring it's bi-annual Vintage Rally, October 3-6, 2013, in Gonzales, Texas. The last time we held the Vintage Rally, we had a seminar led by two cabinet builders on exactly what you're talking about - building and moving cabinets for an Airstream. Pahaska, here on the Forums, was one of the speakers at that seminar (also a contributing writer for Airstream Life) and is the Seminar Chairman for the Upcoming Vintage Rally. He is who I would go to for answers. And we would love to have you join us in October!
Jimmy and Marque (Zoey)
Texas Highland Lakes Unit