I dose ostarine at 25mg/day and throw in some S4 also for 8 to 12 week cycle. I never had any vision sides with S4 or suppresion issues, so a PCT isnt needed in my opinion but thats your call.
i put on some decent keepable muscle using osta and s4. waiting to start another cycle of osta and s4 soon. never used steroids so i cant make any comparisons.
I suspect you will be able to track the package until it is in the hands of the australian postal service. do not know anything about your postal service so cant comment on that.
Osta and S4 at 25mg/day and an 8 week cycle did good by me and no shut down. I thought sarms were hype too until i tried it. Keep in mind everyone responds differently to supplements.