I also just did the Taurus/Mark VIII fan install. Paid $40 for a used one on fleabay. I also used the relay pack and weather tight connector from
The Hollister Road Company
http://www.hollisterroad.com/proddet...?prod=MarkVIII
This fan draws alot of juice, so I'd recommend not skimping on the wiring and relays.
Dave from Hollister Road is very helpful.
Matt