Congrats on the roadside repair
The dash A/C is installed by the RV builder - added to the compressor and condenser coil on the chassis...but it's not usually a Ford bit.
These in-dash "air handlers" come from companies like Evans/Tempcon and can be common to many brands.
It should be rare for the condensation drain to become blocked, so when doing a final fix look for kinks, mud, or insect residue in the drain line.
Safe travels