Good plan. And you're keeping it under a little tent? I used a sandwich bag for mine hahah. Helps keep in that moisture. From what I understand new clones can take a pretty high humidity. Is it MG rooting soil?
Agreed, definitely no nutes for a while. Make sure those things are happy and strong. Some people wait a couple weeks after rooting. Thats up to you. I wonder how those nutes will work though, definitely will have to check back when you start blooming =)
And the tickets, I know how you feel haha, that sucks bro. I just installed my booster fan with the 4" cf filter too. I will have to let you know how it goes. I'm using 6 cfl's and my temp will rise to 79-82F with standard computer fans, 80mm. So I'm hoping with this booster it'll be enough to suck the heat out of my little closet. You dont really need a fan just yet, unless you're using that 400w hps. It needs high humidity and can root with just 1 or 2 CFL's which are super low heat and power usage. 23w=100w standard light bulb