I put an email into T/A a while back about the lowering perches, and did not get a response. T/A does have a Facebook page, so you might have better luck, if you are a member. There was also a thread a while back, where this was discussed.
Welcome, Matt! Good to see you here on the forum. The T&A lowering kit is a very simple and inexpensive way to lower your GT; certainly a lot cheaper than a set of new coilovers. Hopefully somebody here has a set they will part with for you. Consider posting up an introductory thread, with pics of your white and blue beauty.