Sounds like plenty to keep you busy already! Hey, do whatever projects excite you, they're your tanks! But now you know it's an option at least, or like
@Byron said, if you find you want them to breed, could try moving the other fish out and having it pygmy only for a while to give eggs and fry a chance to make it. But no pressure either, not everyone wants to breed all of the fish.
Sounds as though you have it well covered! I love the Bug Bites products for cories, since it's insects only, but I don't fret if the cories also nom on the plecos algae wafer a bit before the plecos grab them, it happens (thinking of my big cories here rather than the dwarf) but if the pygmies eat some of the chopped thawed peas, I shouldn't think it would harm them as long as it wasn't a big part of their diet.
You've named all the small frozen/live foods I can think of! Oh, except mosquito larvae. I harvested a lot of those over the summer here and fed live, and they loved them. Some too big for them to fit in their mouths, but they certainly tried! And grabbed down the smaller ones. I've fed those live and frozen. I rely on what I can get hold of really, from a proper LFS. I don't trust the big box stores or ordering online in case they've been handled badly and defrosted then refrozen or something.
I tend to use cyclops, moina, rotifers, chopped mini bloodworm and BBS; between that variety and bug bites/a quality dried food, I don't think you can go far wrong! You could encourage seed shrimp and other micro critters for them to nom on too, using botanicals etc.