both of Bill's 94s (the 95-98 and 99-2000) are at masgrafx. Also which 91 are you talking about? Is it the one he drove part-time for Evernham or the one he owned for Ron Barfield? I forget where the Evernham version is, but you can make it from the Evernham style number set from masgrafx.
i got the 94s but the 91 i tried makin out of the evernham number set and it just dont look right because the 91 has a border around it and i dont know how to make it that way.