PMAS, if you really believe one MAF with multiple ranges is the way to go, I think you should go for it. Being revolutionary in an industry shouldn't make you consider it "bad business." If the idea is good, you will likely be successful in the end. If not...
But I think we are off topic.
To the original poster, turboLXstang, you are fine. You don't need a meter that's "calibrated" for specific injectors. Injector calibrations are just a fudge deal so that someone can simply swap injectors and a maf and still have a car that drives with proper fueling. In reality though, it's a fudge because the load calculation will be wrong. What you really want is 1) a meter that has enough range for the hp expectations of the car (you do), 2) good injector and displacement data to enter in the tune (hopefully you do), and 3) a good MAF transfer function (you do). Don't worry about there being 37 points. Enter all the low values exactly as they have been provided to you and then choose every other value at the very top.
F1-A 22psi @ 6250. Aluminum 4.6 w/ Darton wet sleeves, 305 ci, Manley rods, Cobra crank, Diamond pistons, 9.5:1 comp, Stage 3 TEA PI 2V heads, custom cams, Bullitt Intake, Accufab oval TB, T56, Pro-M EMS, LS2 coils, 72# injectors, twin Walboro 255s, other things.