You can mix the garbonzo beans and lentils into the dry mix, too... they're peas rather than true beans, so don't require cooking. I found other peas at my grocery store too (whole green and yellow peas) although I'm not sure how much nutritional variety they have outside of color... my macaw likes them all, my Quaker throws them all on the cage floor.
And anything raw and whole (like, not the walnut pieces or dried chilis, of course) can be sprouted. My sprout mix is the same as my dry mix, minus a few ingredients that don't sprout... and not the flaxseeds. The Sprout People site describes them as "highly mucilaginous"... uh, yeah, they're really really icky slimy when wet, is what that means. Of course different seeds have different sprout times, so when you mix them all together it's kinda a free-for-all... the millet and quinoa will sprout first, and they'll be all leggy and beyond by the time the corn even starts... I just ignore it and feed the sprouts over several days. Nuts take longest, I do them separately as a treat for Charlie from time to time.
Of course, true beans (black, pinto etc.) must be cooked before feeding, but other than that, you'll find your particular bird likes some grains best sprouted, some dry, some cooked, and you can just go with his preferences and what's easiest for you.
Anyway, I'm not an Eclectus expert but sounds fine to me! Most any grain you can throw in should be ok... the more variety the better!