OK, 3 seats ordered. After reading all the replies I liked the ones from Milsco sold by Seat Warehouse--supposedly the exact seat as in on my 1811 and 2072. Buying form Seat Warehouse is cheaper than anywhere else, including going buying from them thru ebay. Shipping is included. I had to get a different seat than what was originally on my 2284, but as long as it functions OK, I'm fine with that. FWIW, by my research the seat is made by MILSCO and sold thru Stens, Northern Tool, Seat Warehouse, and K&M. With the holiday season, I expect to get them by the first full week of January. That's OK, they are predicting no snow to speak of here and the Cadet with the blade needs a minutes TLC, but it has an OK seat.
Thanks for the reccomendations guys. I'll post pics when I get them and install them--but the way my luck is going it could be mid-March.