The purpose of a catch tank is to remove unwanted oil fumes coming from the engine entering the intake so you don't really want to go to the trouble of installing a catch tank, only to recycle the fumes again.
You have 3 breather hoses - one from each head and one from the crankcase. You can tee all of these into a single hose, run it to the catch tank inlet and fit a small breather onto the outlet. Result - clean air going into the engine
Blank off the pipe that used to connect to the intake pipe. Keep an eye on the oil level in the catch tank and empty accordingly
Hope that helps,
Raz
