I've sent a 'suggestion' to Ebay Australia that they review the policy - no reason why we should miss out in Australia!

That is never going to happen, I hope. The reason they do not allow digitally delivered goods is becuse there is no buyer protection, something that a lot of buyers found out to their cost when sellers were allowed to list them for digital delivery. If you do have copyright rights then you can put the digital file on a disk and then you have something to post and the buyer has protection.