I used high bond cabinet primer and sprayed the inside of mine. Everything... walls, cabinets, ceiling, etc. If it was brown... it's now white.
I have some in process pics posted in my travco thread, but it's not completely put back together yet.
I also used a high gloss interior / exterior enamel paint for durability ease of cleaning.... and it's just the look I wanted
Oh, and before we hit painted, we scrubbed everything down with TSP. Didn't sand though... probably should have but oh well