Big Plans, Big Plans! I like your room so far. I use a 400w MH/HPS switchable setup myself. You are going to be very happy me thinks *nod* I grow in soil though and you seem to be off to a great start. A couple of pointers and nothing is ironclad, it's all about the odds and how different strains behave but for max benefit, seran wrap the solo cups to seal in moisture till they sprout. Your bagseed sprouts look very strong which is great but sometimes, seeds die off if you let the root get that long before planting, especially if burried too deep. They just run out of energy. Usually, plant them soon after popping and you see a tail and then no deeper than 1/2". You are going hydro anyway so it's all good
You want those CFL's 1" at most from the tops of those sprouts or else they will stretch as the lights are too far away. I use those short flexible table stand type fixtures for sprouts from walmart, pretty cheap. Anyway, 4-5 days under the CFL's and they are ready for the MH. Start out with it 3' above the tops and lower it 3" or so a day till it is 18" - 22", you have to learn how the temps are and how the strain is. Eventually, if you have the temps under control you may get it down to 16" but 18 - 22 is fine. I like the mixing sticks under the cups for drainage. Very smart idea.
Do you have a pH checker yet? You'll want one. Search for 'Hanna pH' on ebay for ideas, mine was 7$. Since you are taking the leap into hydro, you'll want one that checks ppm too. There are alot of growers on here that know hydro who can help as I like soil and am clueless with hydro more or less. Well, nice room. Kewl Budha too.