Temporary passenger side tow mirror

I would consider a camera, but you still have to mount it.
I put one on my truck,$79 for a cheap one.
Display was too small,and hard to see on bright days.
The camera fogged up and i had to take it apart and seal it.
It was handy,i switched it on for plowing snow and was great.
Lasted 3 years.
I have yet to replace it,when i do it will have a larger display.

They need a 12 volt supply to camera,and monitor also,And camera feeds a signal wirelessly to monitor. Mount on front right corner of trailer and connect to
Any continous 12volt source on trailer. Park light would be my choice.