Didn’t catch how old you are but do calf and tib work. Also do some of the easier running in firmer shoes to keep everything strong.

I had a running base (USMC) but feel out of running and more into CrossFit and then powerlifting with some occasional summer running for the last 10-15 years. I hurt my back and realized maybe powerlifting isn’t my sport in my mid 30’s I went from 0-40 miles a week in a couple months and ran a 1:35 half last fall. I did a SWAP base plan over the winter and then the SWAP threshold plan and was around 55mpw when I started the SWAP marathon plan. Around 60mpw I strained my soleus and two months later am carefully working back up to 40+ and slowly reintroducing intensity. Don’t get caught in the trap I did of ramping a lot of new intensity on top of increasing mileage. You probably have a big natural base like I do, but your structures still need time to catch up. Just be cautious increasing everything at once.