Heater/AC System Removal?

Anything special I need to know about this or any tips/tools to make it easier? Gonna pull the whole thing out to drop some more weight as well as make the truck easier to work on since I can no longer remove the cab due to the roll bar.

I have an ac del3te bracket already, and I know I need to make or order a block off plate for the coolant. Anything else that I’ll need?

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Plates to block the holes left by the air unit in the firewall.

Besides that it's pretty straight forward. Once the dash is removed it all comes out pretty easily.