[QUOTE=BradB;403372]I plan on having Dad make a morse taper with a screw end to screw the chuck onto.QUOTE]
Iím certainly not a machinist but I would try to use an adapter or face plate to mount the chuck to (as in welded or other permanently attached). You can use a draw bar with a Morse taper but I would not want to take the chance of buggering up a spindle inside. Lots of forces in an off center work working against that taper.
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety. Benjamin Franklin