Finally found a reasonable replacement for the rectangular fog/running lights. It is a Peterson Lighting M526 that I found at Rock Auto for $15.00 each. They are a little narrower than the original but fit into the opening just fine. I did have to do a little reconfiguring on the aluminum bracket that holds them in. A tight fit for me at 6' and 250 lb and I used a small clamp on the top when I got the light where I wanted.