Lemme look around and see if I can find one w/ better granularity.

Think you could get away w/ whatever's cheap @ about 3k and whatever's cheap @ around 6500- don't know anything about LED pricing per se, but seems as though when I've bought other components you paid about the same for 10 pcs as you did for a hundred, as long as the part # was the same.

How many discrete wavelengths\ color temps \ part #'s are you willing to put up w/?

Looks ( and I am a total layman here) as though you could rough the curve w/ maybe 5 part#'s?

Heh... lemme see if I can find something that we could at least drag into paint and throw x/y scales over... now that I know what you're after...