Looking for some guidance, found a guy who has a (very) used Rotex Screener for sale for $3,000.00. It has a 3/4 screen, is 9' long. 3-1/2' deep and about 7' tall (way to tall for my B3030), but I can cut 2' off the bottom to make it usable.
The only thing missing is a horizontal shaft, gas...