I agree to some degree with the above, but remember you can pretty well guarantee that at any gun shop they’d be significantly more, even if ropey. Whilst there is no harm in asking if there’s anything they could do on the price (maybe if you took both) they also have overheads etc to cover. If they’re in decent condition I’d only be after a token discount given the prices mentioned.

A different scenario here. Years ago I bought a mint Mk1 straight grip, boxed, pellets and paperwork in a face-to-face deal (near St Albans, as I recall). I could tell the young chap selling didn’t really want to get rid of it (it was his great-grandfater’s from new) but having just had a baby they were short of cash, and his Mrs was a little reluctant to have an air pistol in the house with a little man about (despite she knew there was clearly no danger to him). He’d put the pistol up way too cheap. No way was I going to agree to that, so I paid him extra to make it a fair deal.

I like a good deal, but I’d feel guilty if it was too good because the seller was in the dark.