Truth be told solid cams aren't' as much maintenance as many people make them out to be. I adjust mine once per year. Something else to ponder. Next time you hear someone speak badly about solid lifters. Ask them to how to set valve lash.... The probably don't know how to. I've found it to be the rule.
If I were you this is the cam I'd run.
crane 680201
It splits the gap between what you have and the .590 and will be more streetable. It will still sounds plenty good.