If I were you I'd just put in another breather instead of the PCV. It's really just there for emissions. It pulls a vacuum out of the valve cover to suck out any exhaust gases that leak through the valve seals into the valve train.
I do get some oil leakage but not a lot. It's greatly reduced (maybe none now) since I replaced my valve springs and o-rings. I think I had a bad valve o-ring or 6 before. Now the PCV keeps enough suction to pull air in there rather than push it out.
I think Tom might make a valve cover that won't spit out oil as easily out the vents.
