You might want to post a blurb in the UK regional sun forum also:
United Kingdom - Bike Forums Even though double posts are frowned upon, I think you might be allowed a one time reprieve.
One potential place that could take many of the parts, and some bikes as well, is a co-op near you. Not sure if this is the UK term for a local place that has volunteers working as mechanics and parts expediters/counter persons. They offer up used parts and some complete bikes as a service to the community for low prices. Sometimes that are tied to a specific place, or just a group of folks wanting to help out.
Welcome to the forum as well
Bill