Need some carburetor help. *PIC*

http://www.kungsholmen.nu/jon/knctxs.jpg
Anybody know of some nice SU carbs like the ones used in the Jaguar E-Type Series 1. The olnly I could find was in the Taiya MkII Saloon, but they don´t look that good either. So I was thinking of scratsh building some but are not sure on how to make them.
Anybody got an idea?

Thanks!