So I had a fiddle with a cable yesterday. If I use a slightly more modern (and more flexible) cable, I might just be able to get it to fit.
It doesn't seem to matter whether I go right around the cowl or come across from the other side past the breather, there is still a fairly sharp bend down to the controls. But in both cases the bend should not be so sharp as to stop the lever from working. I will give it a try.
The previous owner was running it as a manual, without any lever. But it did have a Conwire lever on the handlebars originally, which is what sparked my interest in attaching a cable.
