I have a TA cyclotourist crank that I would like to use on a bike I'm working on but I'm not in love with the existing rings as this was set up for half step gearing (52/47/32).

I haven't had much luck finding much out there. VO sells them sort of. They have a 46 outer available but their stock of inner rings is poor to non-existent. I have been tempted to buy their TA copy crank; it's beautiful and expensive and it works with a modern BB which is cool.

It looks like Hillary Stone is my best bet but that is in the UK. Hilary Stone The site for Classic and Vintage bicycles and their parts

I guess the other alternative is to put up a WTB in the C&V sale forum and see what shows up.