24pouces, tahnks for our thoughts. Magura - I guess you are thinking about the old rim brake system(?). Well I had them on a couple of bikes. I did not get a hang for them, they are ugly as hell, and I get more stopping power from a pair of BR-M737 than from the Magura.
The Maguras don't give the bike any touch of hydraulic magic. The Magura brakes was a mishap in the evolution in bicycle component design. But hey its made so no others don't need to get in to that pit hole again
For the Accu-Trax ProStop - its like the wholly grail - lots of us have heard and read about it but never get a hold of it. And the caliper mount I guess does not fit todays standards.
This project is like taking a T-Ford and turning it into a hotrod (well I agree the link between a T-Ford and a Yeti ProFRO is some unfair ... to the Yeti)