Alice Springs has 'tower' managed D and C [operating safely for decades].
That is what is needed for busy regional airports that include fare paying passengers [lots of em].
If you need additional flexibility above A050, then consider D up to A100.
EASY, SAFE, LOWEST COST!
It also relieves some of the exisitng volume with the overlying High Sectors [during tower hours], and reverts to G [Oz F with ADS-B] o/nite
