I did 100+ miles per week in singles at age 30 when training for a marathon. I trained this way because my work schedule did not really allow for both double runs and enough sleep. I got in really good aerobic shape and my tempo/marathon work was awesome. Anything quicker was pretty crappy because I was running 12-15 miles almost every time I went out to run with a long run on top of it. My quicker work was not even really speed work either, just a weekly set of 200's or something to make sure I wasn't slogging around (even though those units of work showed that I kind of was just slogging around). I think to try to fit any real, appropriate track work into that schedule without overtraining would have been very difficult and possibly impossible for me. I had a background of running over 100 mpw in college in doubles and preparing for half marathons training in the 90's since then. It was a long time since I had run 100mpw during that training stint if that makes any difference.
My weeks looked something like this:
Sunday: 22
Monday: 10
Tuesday: 13 (tempo work)
Wednesday: 15
Thursday: 13 (something quicker. 12x200 at 33-35, 8x300 at 48-51... )
Friday: 14
Saturday: 13
The highest I got was 105, but looking at my log, the biggest difference that week was that I got lost on long run day and 22 turned into 25.
Training for track though, the thing about those 12x200, 8x300, or whatever I did that day was that even at those paces felt really hard. From a volume standpoint, they were a tiny piece of that workout and they usually felt miserable. Under a different training plan, those were easy workouts for me, but they never were easy doing that volume. If you are trying to get ready for track season, I don't think this plan is ideal. You may be able to accomplish it, but there are probably better ways to achieve the breakthroughs you are looking for.