John,
Its not you per se, its that we get a lot of newbies on here who, 1st post, demand we tell them how to fix their bike, get the info and then leave.
not good for a healthy forum I think you'll agree.
We ARE a friendly bunch and we have a natter and banter just like being down the pub, only online.
To answer your question, ebay is the best place an there are loads of 2 in 1 Motad systrems that come on, or widen your search to ebay.de the german site.
CNSML.com may have a set but you'll pay and you could always contact Motad themselves as they may have some NOS!