I also say don't do it. I shot a doe three years ago with my .38-40. It has a larger diameter bullet and twice the powder charge as the .32-20. After following the blood trail over 500 yards I lost it and could never find the deer. It probably eventually died or at least suffered from a long and painful wound. So if a .38-40 is too light for a deer, a .32-20 definitely is.
(Luke 11:21 KJV) When a strong man armed keepeth his palace, his goods are in peace:
(Luke 22:36 KJV) Then said he unto them, But now, he that hath a purse, let him take it, and likewise his scrip: and he that hath no sword, let him sell his garment, and buy one.