Well you know I'd be happy to help out with a set of hands (clumsy as they may be) anytime, as I'm sure most of us would also be... Anytime I'm not fidgeting, er ... "adjusting" one of my own setups that is.
Could you mount two of the actinics on the front and back sides of the hood? That way you only need to mount 2 bulbs laterally, and maybe then you have enough room to lower your reflectors?
Last but not least, if you need a socket without a reflector, I suggest a place like QuickGrow (just a block or two south of Wai's on Centre St.) or Bumper Crop (up by Pisces), they have a threaded socket that you can use to mount using galvanized piping, this is what I have used (with the exception of the forthcoming 72g hood of course). If you need to look at them to get the sizes and stuff ... well ... you know where I live ....
cheers