I quite often see posts where someone is looking for older Anschutz spare parts.
I would always suggest that a phone call to Arthur Harvey at Budleigh Farm would be worth the effort.
He has been at Budleigh Farm for about 30 years and an Anschutz dealer for that time although I would say that he is more likely to be able to help with wooden stocks than aluminium. He used to be a regular visitor to the factory at Ulm selecting rifles, barrels and parts and Dieter Anschutz is a personal friend.
His workshop is a bit like Fultons with loads of bits and pieces so if you are stuck for something give him a call.
http://www.BudleighFarm.co.uk