I had one that I was using with my TBI setup because it was vacuum referenced. It is way overkill for what you need. It is an Aeromotive universal bypass regulator. I know there are others that will work but I don't know what they are.
As for the fittings, I "think" I found exactly what I am using. I went through some receipts and came up with a summit racing 2200077, -6, 3/8 male hard tube fitting (for return line), and an Earl's 991955, -6 to 16mm x 1.5mm fitting (connects directly to the fuel filter). Where I picked up the connection was at the filter and then ran braided lines to the regulator.