I think that you should go to rimfirecentral.com They were very helpfull when I obtained three vintage .22 winchesters recently. One a 69A. The target models from what I read are highly saught after in their origional condition.

I nearly made a mistake as I got a Mod 56 S-L-LR which to me in the UK was just a truck gun but turns out there were only 8000 made from 1927-29 and make 1000-1500 $ and a 1940's Mod 62.

Check with them first.

Regards