Just had the pleasure of doing business with eurospeed.com.au. I had trouble sourcing some T9 parts out of the UK mainly due to lack of email response, out of stock or that they don't ship to the US. They have very quick response by email I got a reply from them within 30 mins and within 2 business days received my shipping invoice. I would have been faster but I caught them close to closing hrs on a friday. Shipping by DHL was slightly more than stuff from the UK (less than $5 difference). Up in Alaska, unfortunately, I'm used to paying $40 or so for shipping.
They are:
Australian Quaife Distributor
T9 5 speed Ford Sierra specialist
Sierra Diffs for Clubmans
Hewland and Holinger specialists
They also mentioned that they supply "cambered rear floating hub setups to suit, we have found that people can gain up to 2 seconds a lap from a Seven with a cambered rear end." In their pdf catalog they sent me also had various duratec parts: water rail, various ways to mount the alternator, throttle bodies, etc.
I'm not getting anything for advertising them, just happy with the customer service and letting others in the 7 community know about them. You can contact them at sales@eurospeed.com.au