Welcome to the forum and thanks for buying our book and putting the effort into building your own plan. You’ve taken the right approach to start with the 30,000 foot view. Getting these meso-cycles defined and roughed out is the place to start. I like the looks of the plan and think you know enough about how you respond to this sort of training by now that you’ve included that knowledge into this lay out. Only one things jumps out at me. When you are able to start back after the injury define the top of Z2 first thing. You will find that the prolonged lay off will have dropped your AeT (Z2) and you need to restore/raise that. I’d put plan to front load those transition and early base weeks with more Z2 while the overall intensity load is lower. In the late base period when the ME work is more significant and your AeT will have bounced back to a normal level I think you’ll find dropping nearly all Z2 to maybe 1-2x/wk at most with a total volume of no more than 10-15% of weekly miles. Te rest of the base miles will remain in Z1. When you move into the intensity phase I’d drop all Z2 and replace with the Z3-4 work. As always heed the feedback your body is giving you about who you are handling the load. Rest when you need to and do not become a slave to the plan.
I hope this helps. Good luck.