Mmmmmmmm. I know what your trying to do !!!!
Lemme know how you go with this, as I am trying the same (Very similar) thing !
P.S. I have the NF Fairlane Cluster scanned in, and I am working on the EF Sports cluster - Batt Oil etc etc.
I am also looking around for a Tickford logo, a Ghia Logo, and a Ford logo in white, so B4 you start printing these, lemme know, and I can send these logo's to you ;-)
(EG have a look at the EL onwards Tickford Instrument clusters, with the Tickford logo on them !!!)
P.S. I used to work for an IT co. and had access to a 9600DPI Colour Printer/Photocopier/Scanner, that would print on very thin plastic. But because I dont work there anymore, I am looking for someone-somewhere with a similar beast to print the graphics. I have been told that QuickCopy, or someone like that can do it for about $8 a plastic sheet ????