Fred, there seems to be quite a number of them on ebay. I don't know which are the ones you don't have, so I couldn't really check. Also Amazon has 37 of the titles so you probably could pick up a few more there. Good Luck!
Face it, the world has switched to DVD!! The best solution would be to just purchase a combo DVD/VHS for $69 and then the entire series of 55 shows and 14 movies is available at
Regarding that EmpiricalFilm offer, I have to point out that its extremely dodgy-sounding. You'd probably be conned out of your money if you went for an offer like that, so be warned.