I'd personally avoid heads with seriously scuffed up cam journals and those are pretty seriously scuffed but I also see full on scratches that run the full hemisphere on the cam caps. Yes you can run them but how long before bad things start happening is a guessing game.
Looks like it was run low on oil and/or oil change intervals were regularly extended. Pick up Pinkie's heads. You'll at least never have to put a new engine in it because the cam journals decided to spit a some metal into the oiling system. The journals are meant to be darned near as slick as glass. Significant scoring like your cam caps are showing is a sign of some evil-level maintenance abuse or neglect. I've pulled the cams from enough >150k mile engines where the cam journals were completely un-scuffed, though visibly hazier than when new, to think that there's no reason that they should be expected to look like what you have there other than through abuse/neglect.
I guess you could polish them up but looking at the depth of some of those scratches that could very likely open up those clearances beyond spec tolerances, enough to give you a mismatch between the top end and bottom end bearing clearances, and very likely enough to affect correct oil viscosity. You'll want to have the cam journal repair done with a line hone so you get actually round journals without lumps or a bunch of runout, I mean assuming you want the engine to last a while.
Bearing clearances, load directionality, oil operating temperature and oil viscosity requirements are all strongly coupled. If you do polish the cam journals you're probably best opening the clearances for main and rod bearings to match if it goes over .003" at the cam journals and then going to a slightly heavier weight oil. These engines were designed for really tight bearing clearances in the first place, but the actual spec tolerances are pretty wide so you could push everything to .003 and run 10w30 or 10w40.