Week 1
Quality 1: 4-6 x mile @ 10k-15k effort w/ 90s-2 mins recovery, 2-4 x 200m @ 800->400 effort w/ walk back recovery
Quality 2: 8-12 x 20-30s hills @ mile->800 effort w/ jog down recovery (can replace w/ 200s w/ 200 walk/jog recovery)
Long/Quality 3: 12-15 mile LR, 4-6 miles in second half progressing from marathon effort->half marathon effort if feeling good
Week 2
Quality 1: 6-8 x 800 @ 5k effort w/ 2 mins recovery
Quality 2: 20-30 minute tempo run @ 5k + 30s/mile effort, 2-4 x 200m @ 800->400 effort w/ walk back recovery
Medium long: 10-12 miles, 3-5 miles in second half near MGP if feeling good
Honestly, this should have you racing reasonably well from 3k-30k, and you could probably keep it up for a good few months (after an okay base/build phase), assuming you modulate volume and intensity appropriately.