I believe it was a 12mm and 14mm socket ratchet extension and ratcheting wrench. And a can of kroil. I did snap a bolt and had to drill and retap but that’s another story.
hardest part was figuring out what pieces went where, so I took one linkage off and matched it with the new stuff. It says you’re in Colorado, I’d bet there’s plenty of people here who would help you for a case of beer.
I’d work the bolts slowly, loosening and tightening added kroil along the way if you feel resistance. Took me 15 minutes to get two bolts out so I wouldn’t snap the heads.