LED build Help Please

[graham dunstan]

well guys im getting a 7' tank here soon and i have decided to use leds to light it i will be keeping sps mostly, full tank size is 7x2x2

I have been looking at diffrent led's and have chosein the higher powered xm-l's
I will be making 3 units using black 6" x 20" heat sinks

what im thinking is 11 cool white xml's with 14 royal blue xp-e's and 4 violet uv leds

I would use Mean Well ELN-60-27D dimmable driver for 8 xml's
and Mean Well ELN-60-48D dimmable for the 14 royal blues
times 3 for each unit

I will also get another driver for the extra 3 xml's on each unit

i would also get this
http://www.rapidled.com/diy-2-color-dimming-kit/
to dim all the drivers. just want to check that i could just link 3 drivers for the whites and the same for the blues ?

Also is this going to be enough leds for this tank? i will also use 60d optics on all leds expect the uv

the drivers will run the xml's at 2.2a or 2200ma
the blues will be running at 1.3a or 1300ma

So what do you think is this going to be ok or do i need to add more led's to this or should i be ok.

please all help is welcome as this is the first time i have worked with these leds and i really dont want to make a silly mess up thanks in advance guys