You must notice that led arnt lasers (wich emits on very narrow wavebands), and emits along a relatively long waveband:

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The nm rating of a led refers only to where it put more energy, but it still emits light of a lot more wavelenghts. So you dont need to use so much differents wavelenghts close to the next. For example, a Royal Blue led is going to cover very well the from 440 to 460nm. And still decently 10nm more at each side.

So you can simplify that distribution of leds. For the blue range, with two different colors, Violet and Royal Blue (but Violets on the 425-430nm range arnt very efficients, compared to those peaked 20nm shorter). And for the red, with a typical red peaked at 625nm and a deed red peaked at 670nm.

Most of the peak nm you mention are rare to find. If you still want to use so many different SPDs of each color, for fine researching on the propierties of each one, you will need to buy them at a very specialized company, as Roithner Laser. They have all, but you will need a good budget to afford it.