if (year < 2000) 722 Uni-System Sheller Operator's Manual No. Over the years, Reiners has bought and sold many Uni-System power units and attachments. Listing Tools. New Idea 323 Call for price New Idea 10 $950 New Idea 323 $2,850 New Idea 310 $3,995 View: 24 36 72 Save your search and get daily updates on new inventory.