Current Projects chat and miscellany

Need some help installing a Gilles Berthoud rear mudguard on my tourer. They are a good 3cm away from the little bridge between stays, and said bridge is not drilled. I'd like to keep them exactly in this position, so they're a nice consistent distance from the tyres, but wondering what's the best workaround?

My suggestion: drill a second hole a little above the first. Find some plastic pipe with about the same diameter as the chainstay bridge, cut a length to fit the gap. Loop a cable tie around the chainstay, through the pipe, through the old and new holes in the guard, and back through the pipe.