Let me get this straight: you've taken the PCV out and want to connect it to a catch can... and also the other breather? You've also taken-out the oil/mist seperator and replaced it with a pipe?
If that's what you want to do, there isn't really a problem with it. I'd probably attach the drain from your catch can to the sump (so that you can empty the oil back into it) by that hose, and vent the top to the air.