How could you?!? That is a piece of history you are selling, but if you don't have space and aren't a crazy collector like me, I guess I can understand the need to sell.
How clean is it and when was the last time you tested it?
Being an Amiga collector, I am always interested in upgrading my collection to pristine equipment in original packaging with documentation. The problem I have is selling my old equipment that the clean stuff is supposed to replace.