Either a .22 caliber revolver and a .45 Auto, or a .45 revolver and a .22 auto.
I would probably keep a Model-63 and a 1911A1.
Or Maybe a .45 Mountain Gun and a Ruger .22 auto.
Hmmm, maybe a K-22 and a 1911A1.
Or possibly a Colt .22 auto and a Ruger Blackhawk (3 screw) .45.
Decisions!