The rad bleeder will install if you drop the rad a bit, install the
petticock then pop the rad back up.  You can leave all the hoses attached.
There are two bolts underneath the rad that can be loosened to adjust the
rad height.  If there is still not enough room, then remove the bolts while
supporting the rad from underneath.  I seem removed the copper spout and
clamped on a rubber hose so I could tuck it inside the grill, pointing down.

If this isn't clear, I can send a pic.

The second piece (with aluminum piece attached)... I have it and have no
idea where it's suppose to go :-)