Try this one
http://m.ebay.com.au/itm/261800897797?nav=SEARCH
Type: Posts; User: MudRunnerTD
Try this one
http://m.ebay.com.au/itm/261800897797?nav=SEARCH
http://pages.ebay.com/link/?nav=item.view&alt=web&id=261800897797
Check that link John, what you are trying to do has been available for quite a few years in kit firm