Can't you just remap the typebars with AutoHotKey?
Actually, I had spent, about, two weeks overhauling an Olivetti Valentine to dvorak. The problem is: the process is just too labor intense. To cap it, as soon as I finished re-soldering all the type slugs and managing to get the alignment reasonable again, I broke two teeth out of the spreader while fixing a jamming issue (which makes the whole thing useless). And after doing the work, I realized that I was never going to get as good an impression out of the type face as the factory--the slug always ended up being just a tad shallower in comparison.
So, I've just decided it can't be much more work to try and track one down. I might be wrong.