I got a real steel lefty one that's great, fits a PGP as well. I wish I could tell you where got it...but they're out there. Maybe visit a well equipped local sporting goods store, and ask them nicely if you can try your paintball gun to see if they'll fit any lefty holster?
If your glasses fog up and you want to make your own mask fans, here's how;
"My happiness doesn't depend on anything. My heart is always happy. I do have anger issues though."