Might be able to dig something out from this, he apparently tried to mount the toggle on Jones Bars but moved it. No mention of trying to drill out the bars.
If I was gonna DIY it I’d just run it under the tape and shrink tube it to the brake housing to a nice spot.
https://olalindberg.com/2019/ombyggd-specialized-awol-evo/
Might be able to dig something out from this, he apparently tried to mount the toggle on Jones Bars but moved it. No mention of trying to drill out the bars.
If I was gonna DIY it I’d just run it under the tape and shrink tube it to the brake housing to a nice spot.