I would think that it would be VERY difficult and costly to even TRY to do successfully. The existing coach has things in place, and probably in the WAY, of trying to make that work.
On our Palazzo, the front cabinets actually come DOWN with the bed... I don't imagine you could possibly do that with 'adding' a bed. Most coaches which have a let-down bunk are built AROUND that mechanism, the option is not just simply 'added' to the coach later.
...2014 Ameri lite 259BH...
two Campers, two Electric Cars