Someone sold it for cheap due to the fact that it’s 30 years old. I was pleasantly surprised to learn that it’s in pretty good condition considering.
In the picture I am in the process of scrubbing away the worst rust bits. Turned out to be mostly surface stuff. Scrubbed what I could, and got a nice thick coat of Hammerite
The brakes should be replaced soon, but it’s not urgent. Same goes for the bed, but that’s not urgent either.
Lights worked fine, but used the old 7 pin connector. I replaced it with a proper 13 pin ISO 11446 connector so I can plug it into my car without an adapter.
I’ve never seen a four-pin trailer connector here. And those limitations you mentioned would probably prevent any trailer with it from being road legal.
Older cars have 7 pin connector (it’s common to only use 5 of them), and it’s fine for most things. But for the past 20-25ish years, new cars come with 13 pins which has support for some nice things such as charging caravans, etc.