Who has rebuilt a '68 A-body heater box with A/C

I have ,Take your time and have fun. Take pictures before and during disassembly

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Thanks. The more I look, the more I think I'll take your advice. I've already located a few parts that I know I'll need, and I'll start testing a few more components to determine if I need others. A little "quiet time" in the office with a parts manual, shop manual and some perspective of seeing all the stuff laid out on the bench tends to calm me down and think that I can do this!!!