Perfect timing! I am considering getting one of them too! Just to let you guys know, I Emailed EP Racing a couple of weeks back for a quote and they said "The Lexus IS200 TR-Style front bumper is £210 + £25 carriage within UK mainland."
I was also thinking, even if the FRP copies aren't perfect, you're not gonna be the one spraying and fitting them will you? I'm sure you, like myself intend on leaving that job to the professionals, the body shop, who will make it fit perfectly for you, all you need to be worried about is whether you can foot the bill. so I'd say you should look for a good body shop as the priority than if the FRP bumper is perfect cos it's not, even if it were perfect, i doubt we'd be paying £200 for it if you know what i mean... but anyway i'd be interested in the group buy if it works out...