Still plundering away, I'll post when I get it finished. The semi shortage had SCR's going out of stock until February, then some came in stock, it's been nutty. Digi-Key still has nothing for stock, Mouser had 25 then none then I changed to D2PAK then 730 came in early.
I tried to source the Japanese connectors but no luck under motorcycle kind of pricing $50 so I guess it's flying leads and recycle the old connector or something, like a splice.
Hope your health gets better and you find a medicine that is reasonable with the side effects.
Reddit has support and to see what other people find works for them but you probably know that.