There is still a quite active scene for these older Acorn machines
http://www.stardot.org.uk/forums/viewforum.php?f=16 I have an A3000 and some RiscPCs. All in storage at the moment. However I have got some older Acorn stuff sitting right beside me (A Master 128 and a frankenstein BBC B that is being slowly made into a 6809 homebrew machine)