ummmmmm why bother if it works - aestetics ~:?
you can get the exploded parts diagrams of the ducati website as far back as 2001 or something
http://www.ducati.com/services/maintenance/index.do (spare parts catalogue)
its a vacuum fuel tap rather than a pump and is just another way to stop the fuel pissing all over the floor when the motor isn't running
I don't see why you cant do it though, id copy the carbed SS fuel lines