I got the pulley from a firm in Britain, but I think they went out of business. It's still available, though, from other UK vendors (Paramount Performance, I think) - and even if not, any competent machine shop can turn them out. You can also try to get one off a 03-04 Mustang Cobra, I think they're similar as well.
The fuel pressure was left up to my dyno tuner, I don't know what it is set to but I'm thinking it's something like 45psi. Yes, the engine management has been reprogrammed with a reprogrammable chip I got from the same firm in Britain (though I think Paramount Performance over there still makes them). The fuel injectors are ~550cc units scavenged from a Mustang Cobra.