Reddragon, and just pull parts from goodwill mice, they send you extra Teflon pads with the mouse so you can open it and keep the pads nice. Switches are just switches, they are standard sizes, and the cords usually use standard plugs, worst case you swap some pins around to match. Insanely easy to take apart, and cheap enough to not worry about breaking.
They are cheap as hell, but they have good tracking sensors and are really comfortable to use.
Because this city was built on the foundations of Our Thing.