I have about half the lung capacity of a normal person my age (44). When I go I will be able to meet the minimum standards (still working on pull-ups). I’ve done a Super Spartan and I am signed up for a Savage Race and the Battle Frog.
Would my lung condition preclude my participation in Kokoro?
Tough question that only you can answer. Can you make the minimum time for the mile as described in the Kokoro standards: 9:30 in boots and pants? Can you ruck with load for long distances and keep up? How fast can you run a 10k? When you sprint, how long does it take you to recover?
About a year ago I suffered a heart attack and had a stent put in to get the blood flow going again. Feeling good. Would this medical history disqualify me from Kokoro and/or the 2 day Sealfit academy?
That is definitely a question to take up with your doctor. Make sure your Doc knows that you will be under continuous physical stress, awake for 3 days straight, and under elemental ( cold water) stress.