Big job. I have been out of the field for a few years but I believe it pays at least 8 hours? Never did a Ram though. There was a TSB for the blend door on those but we never had to pull the box out for one.

Need an A/C machine first off to evacuate the system and fill it back up when finished.

Steering wheel/column has to drop or come out which needs to be done properly because of the air bag stuff.

Likely the shifter and console has to come out as well but not the seats.

Gotta disconnect a lot of stuff back there as well, there's a bunch of wiring crammed into a small place.

Dash does not need to come all the way out, you can lay it on the front seat but you would need to pull it back far enough to get the box out.

Getting to the lines and expansion valve in the engine bay can be tough sometimes, might be tucked under and hard to reach.

Not sure if the A pillar covers need to pop out but probably.

You need a trim tool to pop out all the plastic trim panels and a good cordless screwdriver or you'll be there all day.