If you were closer work has an 8 foot Sweepster PTO unit for sale. It would be easy to cut down. I was about to cut it down for myself but I bought a self propelled unit for a steal at the county auction. You could also look for an old Pelican sweeper they had a an 18 to 24 inch poly brush and bearings with al lthe drive train on the bottom pick up brush. THey cant scrap that part. We had been given one from the salvage yard and gav e it to a friend to hang up for a cattle scratch.