You are : Lucky to have a Dad that gets you Brooks items.
: Braver then I to do that to a Brooks item
: Quite talented to do that with a Brooks item
So far looks like an interesting alteration. Will check back in for your further work. Nice !
I was sent a Swiss canvas ammo bag from Germany and modified it for one of my MTB
Brown leather belt got turned into straps and attached to the bag with brass hardware. Then it gets put onto the Vetta rack I have on the Alpina Pro Univega. Still waiting for the leather shops around here to have time to sew buckled straps on it for a more permanent fix.
Nice project you have and looks to go perfectly with that wonderful build.