Hi Melissa
I'm afraid I'm unsure about clinics in your area so cannot help you there.
As far as starting again goes, I dont believe you should have to go through the whole process of faffing about with psychiatrists again, unless you are still unsure that is and would therefore benefit from it.
I personally have never had to have any real sessions with a psychiatrist so far, I've been on prescription hormones since last December and was on self paid crappy ones before that. The only psychiatrist I saw didnt think there was anything she needed to do as I've always been 100% certain of myself and confident, although I must admit she didnt quite grasp that I couldnt explain how I 'decided' to be transexual, which I saw as a little narrow minded being as I knew in the same way as members of other genders know what they are lol.
Anyways, sorry for rambling on

I would suggest you ask your previous clinic and GP to send your previous notes to the GP you are with now and perhapse as whichever clinic picks you up to start you on hormones, probably 2.5mg premarin to start then boost it and add antiandrogens once you begin to feel the effects and have had time to see if you like them.
Best of luck whatever you decide.
Much Love
JJ x