Replacing a fan clutch should not take days. It might take an hour or two because you have to remove so much plastic, and then wrestling with the fan clutch bolts may not be fun.
Those go out at known intervals.
Also, as long as you are driving at highway speeds the fan is not needed. The airflow from the road speed is more than the fan delivers anyway. It is when you slow down, like up a steep hill, or in city traffic, that the fan is needed.
The electric is good for RVs because most driving is on the highway at speed, so the fan can be turned off and save "drag" on the engine that both the electric and clutch fans make.
You have to have it switch off by temp or with a switch though.
Take the clutch fan off if you do electric.
Glad you made it to your destination with a fix