Suggestions for my 80g

[nickburke]

Hello,
I have an 80g glass tank im wanting to reef out for the first time. Specifically it wont be reef setup to begin, I plan on doing a FOWLR setup and adding corals down the line.
Was for a while considering a larger custom 180g but the more i learned the more i realised this is probably out of the price range for me at the moment. Having said that i may consider a larger 120-50g if the pricing isn't widely more expensive than what it is to setup for my 80 - but i digress!!!

Im essentially after some ideas if anyone can be bothered answering, on good fish stock levels and specific fish types they would recommend for a tank this size.
The only fish im dead certain on having is the good old clown. Id love a tang of some sort hence why I originally went with the idea of a larger tank. Im not sure though, would a yellow tang squeeze into this setup?
Other creatures im fairly certain of are the diamond goby for its utility purposes and a red fire shrimp OR diamond goby/shrimp combo.

The tank is a little funny in shape, not optimal.. L/W/H = 35''/17.5/29'' .

Cheers
Nick