Just did this today, what a difference!! I coupled the lines together and intended to leave the who CDV out. Ocne I had it out, the valve tapped out of the housing easily, so I put the gutted valve back in the keep the unmodified look.
FYI, the 1M clutch bleeder is an 11mm. The DIY called for a 10mm wrench. Those who have incomplete sets of tools (like me) will want to know that before starting. Fortunately I had an 11mm. There is definitely NOT enough room in there to use a monkey wrench.