You can get a half reasonable copy of the L581
Rear light assembly - 3in diameter - Paddock Spares
I'm sure some of the local parts suppliers would also keep them.
Otherwise look out for Swap Meets, there's usually someone selling lights.
Indicator switch on the Series II was on an arm off the side of the steering column, I'll have to see if I have a photo. Alternatively it was a generic aftermarket switch. As John said, if they were dealer fitted the lights could be whatever was available.
You can spend a lot of money getting correct lights/lenses, most have to come from the UK.
I was after Sparto lenses for my Series II and a google search found them at a small Land Rover supplier in the UK, managed to get 4 indicator and 2 sidelight lenses for a very reasonable price.
Colin
'56 Series 1 with homemade welder
'65 Series IIa Dormobile
'70 SIIa GS
'76 SIII 88" (Isuzu C240)
'81 SIII FFR
'95 Defender Tanami
Motorcycles :-
Vincent Rapide, Panther M100, Norton BIG4, Electra & Navigator, Matchless G80C, Suzuki SV650
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