Input needed for fuel regulator

ok folks
here's the scoop.. returnless rails on a return style truck.. tried just about everything we can think of to get the fuel pressure where it should be , and not in the 70-80 psi range.
so.. i wanna go with an adjustable FPR.
thinkin ..
http://www.summitracing.com/parts/PFS-10686/
but then i need to find some lines with AN fittings. thinking 18 inch long lines.. ill need two cuz i already got one.
also, need to find the right size 45, 90, and 180 degree fittings. the FPR will be mounted to the right (while looking at the truck) of the stock fuel lines. so i gotta go from those lines, to the FPR, back to the lines , and of course to the rail.
let me know your thoughts fellas...