Ac and heater control panel

Hello,

I am researching the failures of ac/heater control panels for late model GM trucks. If anyone has any old units laying around that they are willing to part with just send me a pm. These are the applications I am looking for.

SIERRA,SILVERADO 2007-05 & MANUAL CONTROLS, W/REAR DEFOG
SIERRA/SILVERADO 2007-05, CLASSIC BODY STYLE FOR 2007, w/AC, manual aux control, w/o rear defroster;
SILVERADO, SIERRA PICKUP 2007-05, 2006-05 AVALANCHE,TAHOE w/AC, manual front and aux cntrl (opt CJ3), w/o rear def;

Thanks