This is one made by Rick Menefee that I have been using for the last four years. 18 inch wooden wheel for grinding and a wooden wheel for idler.
This for a 2by 72 inch belt.
Several years ago i wanted some red in wider strips. I had to wait until they got a whole sheet in but they cut me 4 by 39 inch strips so i could cut across instead of toward the end. i think they charged me $30 some dollars a strip. i thought it was a bargain.