Not so cheap at suppliers but again not Devon specific http://www.coolairvw.co.uk/Item/Sho...79_-P-_T25_84-_Inner_Sliding_Door_Handle.html
I've got an old one you can have for a tenner including postage. It's scratched up a bit but works just fine. No screw cover though
Thanks guys, found it in one of the many little cupboards. Fitted it but can't get the bugger to work!!!