Not sure if you've seen this thread: https://pinside.com/pinball/forum/topic/vids-guide-to-upgradingrebuilding-flippers

I upgraded my Sorcerer to Fliptronic style flipper mechs and I'm happy. Something to consider.

Pinball Resource doesn't do online ordering or paying. Cash, check, money order, etc. However, don't let push you away. I ordered from them for the first time two weeks ago and it was a painless experience.

Pinball Life has a drop down selection when you're on the rebuild kit page where you can choose left, right, or both.