71 frame = 3 7/8 inches
Madison Barlow frame = 4 1/4 inches
Not unlike having a TC Barlow and Northfield Barlow in different sizes.
I think they could keep the price closer to F&F, depending on bolster size/steel (or even other material such as contrasting micarta bolster).
Yeah I've had a few of each of the Madison, 74, and 71 patterns. Out of them, I think it like the #74 the best. It'd make a great curved Barlow.