I wanted to post an update on where I am at with this.
Having confidence from the good advice here on RT, I've settled on feeding mixed grass/alfalfa hay in addition to about 1 or 2 tablespoons of wheat per rabbit per day. At first, I blended alfalfa pellets with oats. That was a disaster. The rabbits developed the horrible habit of scratching through their dishes to root out the grain, spilling a good half of their food! It became a daily chore of collecting all the waste and feeding it back again....until we realized that this would not end. The issue was having mixed feed in the dish. We knew we could only offer one type of feed in the dish in order to stop them from wasting. So, we went to just a treat of wheat in their dishes. The wheat treat is tossed with a touch of ACV or molasses to moisten it just a little, then very lightly coated with ground herbs, kelp and powdered papaya. I'm not sure if I really need to give them this daily... it's still an experiment... They still get treats of fresh weeds and leaves.
So far, I think the rabbits are holding good weight. Being angora, I need to make sure the protein stays high. And... being angora, the hay is getting stuck to their wool more than I'd like to see on some. I still need to tweak a few things to get it all just how I'd like it, but overall I am very happy.
AND, I have seriously saved a LOT of money over buying the feed!! I use no more than a half a bale of organic hay per day for about 125 rabbits (includes babies). That's $2 per day, plus the cost of their herbed organic wheat, which I'm guessing at no more than another $2 per day. $4 per day ($28 per week) to feed 125 rabbits of varying ages is pretty good. When I fed organic pellets, I was spending about $60 per week! Best of all, the rabbits that were having trouble with irregular droppings cleared up completely within a week of the new diet. I think the balance of soy and corn that was in the pellets wasn't great for their gut health.
Thanks everyone... this has been a great experiment so far. And, I am excited to keep making improvements!