I bought mine online... came very quickly... great price.
This one works very well... for flatscreen HD TV's up to 32" WE like it... It allows us to move it in any and every possible direction... where it is mounted we "park" it for travel face into the wall. You'll have to devise a place specific to your camper.
I believe that Reddog1 mounted his TV where it stores againest the ceiling (he did an innovative job and I saw it... just don't remember the exact configuration)
Overall TV mount sales pageThe areas close to where cabinates are attached are usually solid between the walls... try to use long thin bolts with washers and lock nuts instead of screws.
As always... think it through several times... drill once:B
Good luck
sleepy