Keyshunter, where can I see the "32 plates" NH has listed for this planter? Is there a website to which you're referring? I have the NH parts manual and that's probably about the number of plates listed but the manual suggests nearly all the planter parts are still available. At least, the number of NLS (no longer serviced) parts are indicated to be few versus those for which NH shows a part number. Many of the parts such as nuts, bolts etc. they indicate "procure locally" and those shouldn't be a problem. Have you owned one of the 309's?