Alan Ashby Jersey?

Long story short, I've been trying to find an Alan Ashby jersey. I can't afford to pay a ton, but would either get a new one made so long as it was an era appropriate design or if I can find one that was from back then, all the better, but I don't know what a fair price for that would be. Suggestions on where to look?

As a kid, Alan Ashby was always my favorite player. No doubt because I myself was a catcher and at the time I was watching, he was (in my mind) the only catcher good enough to catch Nolan Ryan. My how upset I was the day this good for nothing rookie showed up who dared to be arrogant enough to catch Nolan Ryan while Alan Ashby sat on the bench. Yes, I was at that game and in tears when Biggio came out on the field in catcher's gear.