Well finally found one and ordered it yesterday, coming from China so won't be able to report back for a while
NEW CRADLE SYNC DOCK CHARGER FOR SPRINT HTC EVO 4G - eBay (item 280530076027 end time Jul-05-10 14:23:34 PDT)
NEW CRADLE SYNC DOCK CHARGER FOR SPRINT HTC EVO 4G - eBay (item 280530076027 end time Jul-05-10 14:23:34 PDT)