Yeah, you'd be ok for a few years, just be careful with any fertiliser you might be thinking of adding - in fact If it was me I wouldn't add any to a pot grown native. In a general sense, it'll be ok for a few years until it fills the pot with roots and as they hate root disturbance, that'd be about as far you could go with it. However, you could try to bonsai it which would require a bit of study on Natives for bonsai culture. I'd be thinking along the lines of while repotting it each year, doing a very brief pruning of the roots, perhaps just on a third or less of the root ball each year along with ongoing top pruning. That way you might be successful.