Seems like a good percentage of those fish are >100 gallon fish....the trigger almost qualifies at the 200 gallon level. Something to at least keep in mind.
100% for sure you have to get the nutrition up if you want to have a chance at succeeding in a tank 1/2 to 1/5 of the size recommended. Fully functional immune systems will be required.
Paul's tank seems to be pretty jammed with fish (not sure how his selection compares with yours though), but a great example of what's possible with the right feeding.