I think this looks alright except the chain which I'd probably change, again im only 173cm though so this might be too big for me.. (I've looked more locally and there's nothing within 30 miles)
https://www.ebay.co.uk/itm/20-Carrera-Subway-1-hybrid-road-commuter-mountain-bike/332663610086?hash=item4d744bdae6:g:JJMAAOSwwwRbCF5w>>1196955Yeah, i think part of the chain and the cassette has some light rust.