Decidedly low tech. Still looking for radar to cut through fog and rain. Guess I'll have to house it in a luggage carrier just in case the highway patrol gets curious.

I think all those mirrors and indicators would distract me, but it is nice to have them if needed.

My problem is I drive a 25 year old van. All the cameras I’ve looked at require hooking into you vehicles current system. I don’t have any. I wonder if I got a cheap tablet, would that work for a camera?

Which has been rebranded as a power port.
They are stand alone. All turn on when the car turns on and don't access the native computer systems. So there should be some available. But with tariffs who knows what cost and available.
The mirror device has an issue that doesn't bother him. It only has Chinese labels and can't be changed to another language.
When he sets up his phone for navigation everything shows up in German and Chinese, audio is German for the cars navigation.

You might look for car groups for ideas.

I have a young wife that is my tech helper most of the time.