I just got an e-mail reply from Stephen Jansen for anyone interested (based on the posts above)...

He has a new e-mail address: stephenjansen@prodigy.net.mx (he said his old one had gotten loaded up with junk mail... and that he only checks e-mail periodically). His phone number is the same but it was out of service for about three weeks while they moved several stores down the street: 52.624 14.35804.

If anybody does out with him, please post a report afterwards and let us know how it was.