[Karl Bebout]

The bows that ERA sell are very nice because they are adjustable both for width and height. They can also supply the header bows that attach to your windshield frame.
I recently purchased a top from ERA and it is a very nice quality. Pretty sure that Robbins actually produces the top but I don't know about the bows and hardware.
After receiving mine, I had a good Marine upholstery shop do the fitting, which will be necessary for the specific car. 'taint cheap, but very nice.