Good going and thanks for a fun after-action report.
I tried to warn you about those people who cheer.
Also you should know that unless you suffer from some sort of cardiac problem not even a merciful god will let you just die and end the pain. The gods of cx are not merciful and if you do have a heart attack it'll be on the back side of the course and you'll have to dismount and run to the pits for medical attention anyway.
I would expect that the inevitable conflicts would prevent you from power lifting well and achieving a high level of cx ability. However, if you can use the aerobic training and the acceptance of pain to enlighten and expand your power work then being a mediocre but happy cross racer and excellent power lifter could be reasonable goals.
Ron