A hop pellet Machine which there has to be many in the Willamette valley, might work to make your Pellets CC.
Why do you need pellets? Kelp meal does just fine commercially, alfalfa meal the same' comfrey crumbles up easy when dry. A dry mix would not stink in a short soak tea either. It would break down faster in soil too.
Cover them with water for a month or two and they are fermented plant extracts.
Soak ,dilute and spray for bugs and pm.
I guess a third of each? All three are go to ferts for veg or flower, I would not see any reason to have the mix lean veg or flower unless you want to sell twice as much.....scrappy