There are at least 2 other active threads on the topic of breathers, PVCs and venting around right now that you might want to check.
Here's the baffle Rick is talking about
I have almost the same set up as you and based on Rick's advice and others ended up shuting off my rear breather - just put a solid gasket under it and left it there for looks. Now running a PCV from a breather on the front of the right valve cover, and a regular breather on the rear of the left valve cover. Seems to be staying dry so far.
I too thought about buying a puke tank, but they seem pretty pricey - $300 -$500. It looks original and would address the problem in some way, but your basic problem may just be the same as mine - too much
oil being thrown up into that rear breather.
I think the basket baffle would work and I have one if you're interested in buying it. I bought it online somewhere - maybe FinishLine or Gessford for about $40-$50. Not using it now as I didn't drill out the rear port on the new Edelbrock intake to accept it and don't want to pull the intake just for that.