thanks for everyone who offered to help me out here, but i missed out due to me thinking the auction had longer to go than it did, it had just finished when i got out of bed in the morning and i was out bid by a buck, my own stupid fault for not bidding higher from the start, I don't think i will come accross one of these second hand ones again for a while so i might just have to shell out $130 for a new one,
Weiand 90634 10 Rib Upper Pulley- 2.5'' JEGS (eBay item 310311035868 end time 11-May-11 21:28:20 AEST) : eBay Motors
I will get some measurements and check with the seller to see if it will fit the b&m unit first, then i will bump this thred again as the seller only ships to continentil US.
Thanks again for everyones help.
cheers barnsey