indoor measurements 1978 20' minuet

[glarue]

hello all, im hoping someone can provide me the indoor measurements of the dining space, ie how long are the dining benches/table....; how far across from wall to wall; also how long is the middle couch.
on another matter--how difficult is it to remove the couches for recovering....
im grateful.
happy trails.

[Argonaut20]

Cushions for gaucho, dinette, etc. lift out. Dinette cushions are held in position by velcro strips but others aren't.