Which fish first

[Prariecanuck]

I'm planning a new tank build looking around 200-300 gallons it will probly be fowlr and at least 8 feet long and 3 feet wide haven't decided on depth yet. My question is what order to introduce the fish? Currently have in my 90gallon
Small hippo
3 blue green chromis
Coral beauty
One spot fox face
Lawn mower blenny
Firefish
2 faulse clowns
Green mandarin

Want
Yellow tang
Powder blue
White cheek
orange shoulder
Blue throught trigger
And one large angle thinking red see regal

I'm planning on over skimming and since I build tanks could also change tank dimensions any advice durning my planning stage would be great
Thanks