I suggest you look east, like towards Tyler and Henderson. Check Craigslist and similar for leads. You might check with Sam Adams in Tatum (I assume he is still into this stuff.) Maybe Gap Tractor in Cranfills Gap has something.
Thanks for the leads. Sam is still in business, he has only one SA moldboard, fast hitch. He has much Farmall stuff, mostly SA and Cub, that takes hours to look at.