You won’t find a direct conversion locally unless you ran 1/2” copper.
I’m sure their out there but I don’t google good.
You will have to sweat on female pipe fittings and screw female pipe thread to corresponding female/male GHT fitting.
Home Depot items 878041 and 841278.
The mid-size (M18 FMTIWP12-502X) is really popular vs the full-size, from what I've read. I only have the full-size, though. The first one you selected is a pin-detent, and my preference for the friction ring is your model number M18 FMTIWF12-502X.
610nm or 500Ft/lbs will remove just about...