2005 4t trane hp closet upflow. Expired manufacturer warranty. Phased out R22 refrigerant type. Filter system - compromised due to, missing parts that provide proper coverage. 1" filter beging uses with lots of unfiltered air getting past the filter. Evaporator coil - extreme buildup, discoloration, oil stains and detectable refrigerant molecules entering into breathable air. Heavy buildup on indoor unit including the blower hub and wheel. Alert on tstat indicates the secondary heat strips are active too long in season. Compressor capacitor is failing. Condenser fan capacitor is failing. Hard start kit rendered useless. Compressor inrush amperage exceeds manufacturer specifications. Refrigerant levels read below manufacturer tolerance. Vapor line missing insulation. Disconnect box is shorting out. Outdoor TXV has audible chattering. Upon arrival homeowner claimed system performance issues and turned into an evaluation. Shared the history of evaporator coil leaks and freezing. My diagn