Reviewed home to see if consolidating 2 systems into 1 system is possible. Lineset is undersized, will need to run a new lineset with linehide and will need to run new wiring from panel to outdoor unit with new breaker. Ductwork will need to be modified and zoned with (3) trunk dampers. Other option would be to replace 2 systems and keep configuration the way it is. Ductwork is old and insulation is in poor condition but some is inaccessible.