$7,777 · WANTED: ALUMINUM 20 lb. propane tank (certified or not)

Do you have an aluminum propane tank (not silver painted steel) that you no longer need, or requires the fill valve to be replaced so the propane suppliers will refill it ? The 20 lb size is preferred. We are looking to purchase one or two in good shape, a few bumps okay, as long as it can be certified as leak free. Let us know what you have, your asking price, and what part of town it is in.