At level 30 with steel weapons, I personally could beat a tier 1 purge. But it would take precision work to avoid damage (assuming I went 20 agility or strength and 10 vit so no glutton). I don’t know your skill level or if you played 63738 hours of dark souls or not so I would say that you can do it, but I don’t want to give you a false sense of security.
An easy way to test is to build a coffer a little ways from your base , put a coin in there and trigger a purge. If you can’t handle it you will lose 1 coin and none of your structures get damaged.
The items I mentioned will only reduce the skill needed, I can’t guarantee you a victory but it would be really hard to lose at level 60 with epic armor and legendary weapons vs a t1 purge.