If anyone is looking for these parts on eBay, make sure you have the part numbers and their values correct. I tried wading that minefield and didn’t know who to trust. Guitartrade in Australia is a Gotoh distributor, reference to parts is made super simple there as they show them clearly.
I’m a modder of my gear and find that this means I don’t have the headaches.
There’s bound to be distributors all over the world but it’s easily accessible this way, and I’m very partial to the Gotoh hardware.