There's a local Michigan company called "Organically Done" that a lot of retail/hydro shops carry. I've used a bunch of their products, and they are all of good quality IMO. If you want to go a cheaper route you can check out feed shops. There's a place that I frequent in Rochester called Uncle Luke's Feed Shop that carries all of the above in bulk, and smaller quantities by request.
As for feeding the worms, I feed them all sorts of fruits and veggie scraps. They also eat the majority of my fan leaves at harvest. I add a pinch or two of the organic meals (kelp, alfalfa, crab shell, and oyster shell) every feeding too, which is once a week. I use a combo of shredded leaves from my yard, coco coir, and shredded cardboard/newspaper for their bedding. Keep it moist, feed them weekly, and in a few months you will have the best soil amendment on the planet. Worm castings are the #1 key to a successful organic grow.
There's a good thread in the organic section about worm bins. It's called "Vermicomposters Unite" or something to that effect. Check that thread out for some good tips, or you can shoot me a pm if you have any more questions.
I think this will be the easiest way to get the most out of your FFOF. I'd add some castings from jump st to the FFOF. Put the plants in their final home a week before flip, then top dress at week 3 and week 6 of flower. You don't want to chase deficiencies growing organically. Everything happens slower. Stay a head of the game and it will be smooth sailing, and water only the whole way.
