Right, need a break from going round the twist with auger bits for a moment, so instead I revisited my not-terribly-beloved infill plane. If you recall in December, I found to my horror, that it was rusty. So in a fit of guilt I cleaned it up, and gave the iron and back iron a bit of a going over too.
I went to the box o' spares and thought I had found just the thing in a tidy and nearly full length Hearnshaw Bros. 2 1/4in tapered iron and cap iron. Alas, turns out the plane takes just a hair under that, so I'd have to reduce the iron's width to get it to fit. So that may get on the To Do List.
Or maybe I'll just sell the thing and have done. It is a bit 19thC stylee for me.