I think I have a decent grasp on what 1500/5K training looks like, but I'm not exactly versed in 800 training. I eventually want to dedicate a season to the 800/1500 split and see how quick I can get -- I've read and heard a lot about using the 5K to get strong and the 800 to get quick once you're decently developed in terms of physical maturity, aerobic capacity, and mileage (an eventual fall - 5K focus, spring - speed focus).
What I usually do is use 5K pace stuff as my "supplement" for my 1500 pace workouts, in that I'm tackling the 1500 from the strength end and tacking on speed. On a two-week rotation during the spring, I'd usually have 1500 work every week, and 5K work every other week swapped out with longer aerobic work (tempo runs, fartleks, 10K pace). If I run 800s during the season, I'll usually only do like 1-3 sessions total to address 800 pace specifically, starting with 150s and 200s tagged onto the end of a workout and progressing to 300s at 800 pace as my final progression.
I would assume you'd want to do the same thing: 1500 pace every week, and 800 pace every other week swapped out with the longer efforts (with probably more emphasis on threshold). And tack on stuff like 100-200m reps, cutdowns, flys, hill reps like once a week.
But where do those workouts start, and where do they end up? Can anyone give some examples that I could latch on to? I'd probably still want to keep it to 2 main sessions per week, unless you need the third workout? Would also potentially drop the mileage down a bit.