120 days post op training for oly?

Input and advice please:

I am 120 days post op from a microdiskectomy at L5 S1. Medically cleared from surgeon to do whatever my body says to do. I am a big boy, 6'3" 230 (down from 235 14 days ago!)

I have done 2 sprints in the past 2 years (with a herniated disk all along).

I have my eyes set on the Black Diamond triathlon in Enumclaw this fall, September 24th.

I started training in earnest 2 weeks ago. Easy base of 45 minute run (around 10min/ mile), 1:30 bike (at approx 17MPH) and 40 minute swim (around 2:30/100, yes SLOW, I know).

With 12 weeks before the race I think I can easily be ready. My training plan peaks the week before the race at almost 8 hours; with a long swim of 54 minutes, long bike of 150 minutes and long run of 74 minutes.

I will use race week as a taper week with only about 2 hours of training that week, so almost a drop dead type taper. 2 swim workouts and a bike ride- no running that week. Pehaps I should add a short run that week?

It does feel good to be training again!