Not hard to find, either go to airliners.net - google Lears - l
ook at the photos until you see graveyards - you'll have your locations.
Also go to FAA Register - enter Lears - look at the owners listed for the older 23/23/25 - you'll see the same name multiple times - google the company and you'll have a who's who of bizjet salvage.
Hint some of the bigger ones are White Industries
White Industries Aircraft Parts and Salvage
Dodson;
Dodson International Aircraft Parts, We Buy and Sell Avionics and Engines, Aircraft Salvage Parts, New Surplus, Overhauled Parts, As- Removed Airplane and Helicopter Salvage Parts. We Buy and Sell General Aviation, Corporate, Commercial Aviation and
Atlanta Air Salvage;
Atlanta Air Recovery - Welcome!
Norm Hill Aviation (Gulfstreams);
Norm Hill Aviation