Bit late to the party but interested to see what you come up with. My next tank will be bigger than what I have so I'll be needing bigger lights. I'd do the DIY myself and be pretty confident with it all aside from the coding and controller side of things.
How would your model compare to the coralbox moon led? as they're pretty cheap and come with most of the bells and whistles (just in the cheap chinese way)
More output power, adjustable single lens (which theoretically will make it behave more like a single light source, instead of multiple spread out which can cause the "disco effect"). Controller is integrated, no smartphone app required (some would view this as a con, others as a pro). I haven't bothered with amber, "deep blue", or "UV" because (in order): there's no point if you have red LEDs, there's no point if you have blue and royal blue LEDs, and the jury is still out on whether TRUE UV LEDs are good for corals and 390-400nm are only "fringe" UV, so it's a pointless expense.
I've gone with more whites, more royal blues, and some supplemental colours - I've got high efficiency photosynthetic red to take care of the pigments down that end, royal blue and normal blue to hit those peaks, cyan and green to hit the supplemental peaks and to enhance the tank inhabitants for our eyes, and 4 410nm true violets for additional colour enhancement.
So IMHO you're getting far more usable light, far less LEDs that are just fluff, and a higher overall output.
But the CoralBox light does have a pretty housing. Mine will be more... rugged? I guess.