If you are not in a big hurry, John Frank, of The Cessna Pilots Association, wrote a book on buying and owning a 182. I purchased one in case I got the itch for more seats. It is an excellent read on the subjuect and the pre buy checklist is very good. I let an interesting 182 go without buying recently because the the bladder tanks were original, which in this case was twenty five years old. After the fact our local A&E said replacemnt was no big deal and could be done reasonably. He has been a good source in the past and is usually quite close on estimates. On occasion I regret not getting the 182.