I forgot to mention that the seller said that the IV guys are very H&S orientated and might insist on a crush - or certainly something equivalent. Any experiences?
Near us there is a factory with a sign "There is nothing so important it can't be done safely". I couldn't agree more.
I used to go round farms doing pregnancy scanning and you would not believe the makeshift contraptions used to restrain cattle. I was once almost trampled upon by a very quiet cow who merely backed into a gate, the baler twine gave way, and the cow and gate knocked me to the floor. Fortunately the cow didn't panic, got off the gate, and I was able to crawl away. It was not pleasant.
You can get a perfectly adequate, not fancy, crush for £150 or so. Just keep your eyes open locally for auctions and ebay. It's not worth risking serious injury to yourself, or more likely other people, for the sake of the same money it would cost for 2 good gates.