by DavidL » Tue Jun 07, 2011 1:54 pm
Dunno if this is helpful, but another vehicle which uses round 7" headlamps is the Land Rover Defender (and its predecessors, back to the 50s).
There are a lot of companies who sell Land Rover spares, and if those lamp shells could be made to fit, you CAN get plastic ones. Any attached fittings will usually NOT be stainless, though.