Looks like a good training plan to me. I do have a little advice though.

You will come to a point where spending the majority of your time on putting and chipping will not be as productive as spending a little more time on irons and pitching.

IMO, you should spend the majority of your time on putting and chipping up to a certain point. You will reach a point where getting a little better around the green is not as productive scoring wise as getting better at pitching and hitting the irons. I would say this point is about when you can 2 putt from 20-40 ft 90% of the time, and make 6-8 footers 50% of the time. It's very hard to get better than that (and these are rough percentages for easier greens ... playing on very difficult greens, the above stats would be better than the average PGA tour pro).

If anything, I think the chipping practice is more important that the putting. The reason for this is that you aren't going to hit putts fat or thin ... if your pace is decent, you will rarely have a horrible putt. But it is much easier to mess up a chip. Get consistent, solid contact on all your chips, and you will soon be able to get a 30 ft chip almost as close on average as a 30 ft putt. A lot more can go wrong on a chip than a putt, so getting the consistency with the chips is very important.