just get a Blueflame. they'll be about £100 more brand new than a 2nd hand Milltek and they're at least as good (if not better) imho
Just wait and one will pop up in the For Sale section sooner rather than later, they always do, both Cat Back and full systems. Just keep checking ALL THE TIME as I guarantee you everyone else is.
Baz i noticed you'd just purchased the BCS in the For Sale section. what prompted the swap?
You can send up board notifications to have new threads sent to your email, have you got that set up already?