We're on the East Coast, about 1200 miles away unforunteatly. There's a shop about 70 miles away that deals with Gleaners, hoping they have one back in the weeds thats not rusted out I can give some TlC.
I believe they made an 18 footer, not sure about the 20. I had a 16 on mine. If you have lots of straw and better than 50 bpa yields, a 16 will keep the old girl well occupied. Ed in Montana