I doubt that there are many Colt Woodsman Match Target pistols on the market. If I had one, I'd sell it to a collector and use the money to buy something else, especially since I wouldn't want to drill into an old Colt to mount a dot sight on it.
There are some excellent High Standard pistols available, but there are some poor ones, too. Let the buyer beware! With the Hamden models, Texas models, originals and copies to sort through, it's not easy for a new bullseye shooter to buy with confidence. The same goes for HS magazines: some work, some don't, some can be tweaked to feed certain types of ammo, and some are just junk. I get beaten by HS shooters on a regular basis, and I love a well-tuned HS trigger, but I've seen so many HS shooters having problems with their pistols that I've never bought one.
Shooter.45, how much are you willing to spend? And are you going to shoot competitively or just recreationally?