360 Magnum building on an existing bottom end

I put a Oregon Regrind Cam in my 198,*** mile 5.9 with Hughes spring kit. I didn't even pull the pan, runs great. It's good to look at the bearings, but if it's a KNOWN good engine, then I might not even bother, and I'd use the original oil pump in a heart beat. The bearings to worry about are the cam bearings, seems the magnums like to chew on them a bit.