Id try to look into equipment sale sites and tother companies that manufacture sell or trade in equipment often they take in used buckets as trades. I make most of my on buckets ill make a templae out of the bucket I want then transferr it to my table burner or my torch and make the sides and top. Then tack the back onto the bucket and use the machines weight and arm to bend it all into shap. then add my side bits cutters and teeth,and wear strips.