I think that’s good.
The only powerlifting meet I ever did, I had a 450 wilks. That was a little over 2 years ago, when I was training specifically for that and nothing else. And it involved a water cut down to 181 lbs. I actually walk around at about 200 now, and my powerlifting numbers probably are about the same as they were then. Slightly higher squat and deadlift, lower bench. If I do train for this, I reckon I’ll end up in the 430-440 range, based on what I put into the calculator.