playskool pipeworks 3000 or 4000 set

Hi! I'm looking to purchase a complete Playskool Pipeworks 4000 set. Please let me know if you know where I can purchase one or if you have one you'd like to sell for a reasonable price. It doesn't have to be new - just complete. Thanks!

I used to play with the pipeworks construction set as a little girl and now, as a teacher, would like to purchase a set for my class. Please! Does anyone know where or who I can contact to purchase this? Playskool don't produce them anymore so if you have some you'd like to sell, please...

I am looking for a pipeworks 4000 instruction manual. I am also interested in purchasing a pipeworks 4000 set if the price is reasonable. Thanks

Does anyone have playskool pipeworks that they would be willing to sell me? I would be forever grateful!