Check out Mike Bishop's site here John; well worth a read.
http://www.csse.monash.edu.au/~lloyd/4/LandRover/S1/80/
"1951 - sidelights moved from bulkhead to mudguards."
My '51 has them in the bulkhead.
The one you have found looks to be in pretty good nick, especially what I can see of the chassis. Mine had most of the chassis missing, but it wasn't difficult to repair it. If you get a Series 1 there are heaps of enthusiasts over your way.
PM me, if you would like an email address to join a Series 1 forum which is mainly set up to cover NSW and Victoria.
Cheers Chazza

