Bruce, thank you for the access to the parts lists downloads.  I have a 5hp 2 speed belt driven Rotahoe to restore!  It seems pretty well complete, although the engine needs attention, and the wheel/axles seized up.  Where do I find the Serial Number?  What does the stabiliser bar actually do?  At the moment, it is horizontal, secured with a spring clip.
Are you the source of spare parts?  If so, do you have a list of what is available, please?  Any advice will be greatly appreciated.