I have a 72 280sel and I figured out something cool!
I took the PIAA fog lights off of my suburban and they fit into where my high beams would be, though they didnt fit perfect but the clips on the side clipped right on the bracket holding them in place. Talk about seeing at night, I can see about 100 yards or so. And they look really cool also,maybe you could try something like this. I reccomend PIAA's though they are very expensive but worth every penny.

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1972 280sel 4.5