I know where a 1980 Pawnee is, low hours, 4 bladed Hofmann prop, and silencer.
Re-covered in 2006.
Price roughly $70,000 plus postage

There are plenty of alternatives to a 182, and no real reason to modify it like that.
Try a Dakota. Works well. Know where one of those is too. Bit more than the Pawnee though.

EZ