[Brad54]

Call AccessoryLand.
(563) 556-5482.
Tell him Brad in Georgia told you to call.

I just spent a bunch of money with him, but all worth it:
NOS inner and outer brackets for '60-63 Chevy, Driver's side AND passenger side
NOS inner and outer brackets for '76 Dodge D100, and the spot light (with "MOPAR" tag on the light, so it's a rare OEM piece)
NOS inner and outer brackets for '54 Buick Special, Driver's side and passenger side.
He knew the '54-55 Buick Special brackets were different than '56, and he also knew they were different than '54-'55 Super/Roadmaster brackets.

And this is the second set of '60-'63 drivers/passenger side brackets I've bought from him. First set was for my '61 Suburban several years ago.

If he doesn't have the factory-correct brackets you're looking for... they don't exist.

-Brad