Okay lets simplify this.. before I'm on my head trying to figure this out .. Right or Wrong?

Two lines run to a T connector at the throttle body..
Replace those two lines with longer hose and connect to a port on the "new" catch can with a T or Y.
Pull a new line from the left over port on the catch can to the original connecting point (T on throttle body) and put a cap-plug on the left over side of the T at the throttle body.

Sound on track?