Based on a lot of research and asking around, I just bought the original made in Italy one that's about 20 years old on eBay. They are basically a commercial unit, with easily serviceable parts. Nozzle style that doesn't freak when you get liquid in the pump, 100% duty cycle heat bar that doesn't overheat and will seal even wet greasy bags. I found 11.5" x 50' rolls for $10.50 at webstaurantstore.com
I realize the OP already decided, just thought I'd leave my results here in case other people researching buying one like me & OP wander in.