SpeedMaster Head- Rocker Options/Questions

I advised him to reach out to a few of you guys as I haven’t played around with hydraulic cam builds in well over 30 years. We know the springs need changed out as they are for a hydraulic roller cam but he could keep those for a future build. He’s currently set up for his 484 lift cam so those springs should work for him, I’m assuming his current rockers should work too. Pushrods will be in question and I figured you guys changing over from stock heads to Speedmaster type heads with hydraulic cams have been down this road before.