Necking a .32 to a .22 may result in the neck being too thick, you may have to turn or ream it.
IIRR Winchester only makes a run on the old brass once a year. I see one item on GB now but it's more than I'd be willing to pay.
30 years ago I has a Bee in the 10" octagon barrel. I traded it for a 357 Herrett 14". Wouldn't you know I found a NIB 14" Bee barrel last year, and I still had my dies and brass left over from the first time around. I-4198 pushing a 45gr bullet nets me well under an inch at 100 yards and I'm no benchrest shooter. Actually it's the barrel in my avatar.