Hets are everywhere, just wait. As a matter of fact i could probably buy a het in less than 10 minutes if i was looking for one. Now getting it shipped would be the issue. Then again i have a visual and multiple het pieds in my collection, and they were all extremely easy to find.

Chances are the guy isn't 100% het pied, but then again a 100% het pied male around 200 grams would be around $50 from a reputable breeder, so the price isn't too far off. Heck i just sold my 1100 gram 100% het pied male for $100 a month ago.