I think every motorcycle tire shop in the US has had them on backorder for over a year now. Last I read Goodyear sold the name to someone who was going to make racing tires only, nothing for street use.
There's probably a good reason they're only $100. I dont know whats on the left but they look bad. Spend the money get whats right. I think eye to eye stock shocks are 12 or 12.5 inches.
There is one on YouTube try again and I believe it was posted by someone on this forum. You didn't say what year so my brain defaults to pre 2018 engines. As far as gen 3 goes I'm no help.