This bit of water proving to be an expensive problem[V] - have you tried any local classic car clubs Mully?
Ebay might also be worth a try - am sure we can have a whip round to help sponsor the listing if it came to it - I know I'd rather try and give it some options rather than see it weighed in. It would be a great bus to explore Ireland in when finished.
Forgive me if I'm stating all the obvious that you've already tried but just racking my blonde brain as would be gutted to see it lost.
We might not have been much help so far finding it a home - but we're pretty good at talking through fixing 'em up, hope we can be more useful on that front:I