Darn I'm vested in this question now...
I'm considering the following 2-3" in my build
Achilles
Purple
2x Yellow
Gem
Yellow eye kole
White tail
Sailfin
Convict
Powder blue
Tank is 72" x 24" x 29"... with sump it's 300g system.
I do have a 96" x 36" x 30" 400g that I can eventually move bigger fish into... again these are all going at the same time as 3" juveniles... but I was also assuming not all would survive to adults as this is the sad reality of the hobby. This thread is making me doubt the plan tho :$
I think the hardest part will be getting them all in a close enough time frame so you can stock at once. I had a hard time doing that for 4 tangs as I had a similar plan. Ended up settling for 3 of them... the 4th was an achilles but that never happened. It's a good list though. I am considering adding a convict at some time if I can find a healthy one.