The rig will ONLY be hotter than the ambient temp during lights on.

What voltage are your emitters? The ones I'm using are 6-7v and my wavelength varies between 620-630nm

What I'm seeing though is you have two 35 watt transformers, but 90 watts worth of lights.

Using multiple transformers is perfectly fine, but you can't use more power than you can transform. Luckily the transformers you have are protected so they'll switch off, but you'll need another transformer - You can get a pack of 10 of those transformers for roughly $70, I haven't seen 5 packs any lower than $50 though. As far as your emitters, what brand did you get?

I got 200 of the prolight star 10w's for $515 and 100 of the generic blue 460nm's for $200, giving me a whopping (cry) 80k lumens on a 3k power drawl. Mine are all still in the boxes until I get the design down pat and ready to patent, but lately I've only had a few hours a week to put into it.

the 3k watts are being broken into 4 switchable pieces at 750 watts each, each using a 800 watt Ablecom PWS 801-1R

The red and blue will be seperated, so the panels will be 2 solid red, 1 solid white, 1 mixed (so it can be switched from full spectrum veg to full spectrum bloom) I haven't ordered my soldering boards yet which is why I was interested in what your source was. I can have them printed for about $45 each, but I'd like to find a cheaper source if I can, I know I can get fully wired 12x12 blanks for $13, but I need 36x12 panels