The pin switches are near the latch on the B pillar and on the C/D pillar of the door apertures
RImmer Bros. have stock P/N: YUE100570 £8.05ea
Also Viking Garages have them
David Haynes/ Paul Somerville
Viking Garages Ltd
Unit 9c Herald Industrial Estate
Herald Road
Hedge End
Southampton
SO30 2JW
£7.46
Telephone 01489 775408