Almost missed this...
So, it sounds like you have a closer source for one, but if I stumble across the disk wallet the restore disk is in I'll check with you and see if you've found one already. (Said envelope is somewhere in the boxes of miscellanea in the Sparr 'Oom that's totally on my list to get sorted through one of these years.) Since I have no Cube and the OS 9 version on the disk seems to be doctored so it's not really usable on other machines I've no problem parting with it.