Ran across this this morning Lot 30 of SuperMicro SB16105 2.5" SAS SATA Hard Drive Caddy Tray | eBay
Lot of 30 trays for $50+ 8 ship OBO. That's under $2/ tray shipped if you need spares.
Lot of 30 trays for $50+ 8 ship OBO. That's under $2/ tray shipped if you need spares.