I would recommend Swepco expecially for cars with power adders or tracked. Worked very well my formula car to prevent R&P wear, Redline especially the lightweight showed R&P wear fairly soon, Swepco none.
Found this price with a quick google search:
http://www.********************************************************************.com/product_p/swepco-201.htm
And pump here:
http://www.pelicanparts.com/catalog/shopcart/911M/POR_911M_UPrc91_pg26.htm
I'll be changing my 22K mile stock fluid to Swepco before Spring.
~ Chris