Kilo,
I loved the old girl before we went Merlin but after that long in service ( 33 years of which I saw), there really wasn't anything new to break (all respect to the officer though).
If the damage was as severe as you say then the whole transmission system will be a write off as well as main lift frames (which take the gearbox) 290 and 243.
There may also be airframe damage beyond the cabin area and the tail cone may have been compromised, not forgetting overstressing the landing gear and sponsons by tipping forward. If the damage is too severe they will weigh it up against the remaining need for the airframe against cost before it is replaced by the Cyclone. I've seen our MASU guys bring some pretty hopeless cases back from the dead!
Cheers now