OH man, something I look forward to doing; renovating the AC.
As aforementioned in another thread, when putting the AC box back together, I would block, or severely limit, the amount of airflow on that far right side vent.
Otherwise, 90% of the air flow will go through that vent and hardly anything out the center/left vents.
I'd replace:
blower motor, expansion valve, switches, and drier. Definitely test the evap for leaks. If it's suspect, I'd get a new one if they're available???