I've got a 1979 VW camper with a German spec hook up socket. This is a
male terminal into which should plug a female Schuko plug and then a
lead into the campsite electrics. I'd like to keep it German spec and
avoid enlarging the hole in the body for the input socket.

Where can I get a suitable outdoor female Schuko plug in UK? I've seen
travel adaptors but these don't seem to be for outdoor use.