I have numerous items that have been removed from my 1976 M20F.  All parts were working at the time of removal and were replaced during upgrades. If you are interested in any of the parts PM me your offer.   Century GPSS 1C977 / Century GPSS Adapter/Controller 1C975, $1800 new ($800) Mid-Continent Directional Gyro 4000C ($200) GE Landing Light 4522 (pay for shipping) Brittain Turn Coordinator TC100EVS (Sold) Whelen Strobe Light Power Supply (X2) A490 (Sold)