Fingers crossed someone comes forward to help them out - it's a big ask though.
Other airframes wise, even if other owners were prepared to have their pride & joys cannabilised, there must be other implications to consider such as flying hours/faitgue on said components (would the CAA allow this?) plus someone else has said that these aircraft were built in the analogue age and many donor components just might not fit!
I think brand newly built replacement parts is probbaly the only way to go - I'm certainly no expert, so hopefully someone more knowledgeable will be along soon to comment...
Everything crossed at this end for 'Foxy' though...