No instructions and 2nd hand equipment

I am going to sound like a moan about work again. I'd said to the client I was not going to have anything to do with a bit of kit as he didn't have instructions, and what he had was missing bits. It's the kind of kit that could easily have collapsed and killed folk but I was paid to be on site to check over the monitoring stuff that was going onto the structure. And the monitoring equipment is a mixture of calibrated bits and 2nd hand bits. Annoying the brand new data logger was missing an aerial so I had to dismantle the clients router and knick its aerial. I wonder if that was an extra he had refused to pay for it. Once they started on the structure it was clear I had to step in as it was going up if I helped or not and they didn't know anything about it.

I really hate it. No backbone sometimes

If I was doing something like this for myself or with friends then I might accept it but for some reason I am not willing to let folk I have never met before risk themselves. In the end it went up after a fashion. It is a horrid bodge job and looks like a breeze would have it over (but it currently happily surviving 30mph winds).

Anyway. It is up and nobody was hurt but I am knackered and being grumpy to R.