no, this IS a unique situation that in 9 years of being on Hybrid forums, i've never read of anyone breaking the bunk door off of the hinges.
i've never seen anyone having to do this extensive a repair to the front bunk door.
many have had to replace the bunk door, by removing it from the hinge and replacing the door panel with a new one but not what you seem to be dealing with.
and sorry to add to the negative, there's no such manual or specs out there.
nearly all RV manufacturers only provide a generic owner's manual that's not even RV-type specific, let alone model-specific. no such specs or diagrams
it might be worth calling the Rockwood factory and seeing if you could have it repaired there.
also, pics of the damaged area would help determining exactly how bad it is.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC