Multiple Carbs on a Slant

I just had a machinist over yesterday to take some measurements for a set of carb pads to fit the carbs I have, since the stud pattern on the intake was far off from the holes in the carb base. Looks like it's gonna be about $60 for a pair of 3/4" carb pads in 6061 aluminum. Any thought on how to attach these? I was thinking a nice thin layer of JB-Weld between the intake and the carb pad, clamp it together, then after it sets, drill for some narrow headless set screws about 1 1/4" long and sink four of those into it...it should act darn near like it's one piece after that treatment...any other ideas?