One day I will do this on my IH 260a. It has the Neuss 239, and it looks very similar. I really enjoy your resourcefulness coupled with great patience and intelligence.
You do things the way I do!.. reuse the old parts.. Ah, you shouldn't do THIS.. but it's not like you're going to break it more than it already is! I'm working on both a 584 and a 684 right now