ATI, Geisman and UVL all make good T5 bulbs. I don't know what color you are looking for from your lighting set up, but there is a thread in the Lighting, equipment and DIY section that has par numbers and pictures of various T5 bulbs that might help you make your decision. In my 6 bulb fixture over my 50 breeder I am running Geisman bulbs.
Front to back:
Pure actinic
Aquablue+
Aquablue+
Aquablue+
Pure actinic
Aquablue+
It is not a bad mix, although the pure actinics are a little purple for my taste. They do make the greens pop in my sps. I am thinking about changing them out, but not sure yet.
BTW--I purchased the fixture used and this was the bulbs setup that was in it. The bulbs were less than six months old so I am using them for right now. Still not sure that I will keep them the way they are or change a couple of bulbs around.
Your tank build looks good. I know how frustrating it is to just need a few things and yet still be so far away. It will be worth it once everything is up and running though. Great job so far.