[Dual Boot] Windows 10 and OSX El Capitan different SSD's

Hey guys, this is my situation:

- SSD 1: already installed Windows 10 with data
- SSD 2: clean ssd to install El Capitan
- HDD 3: clean hdd to share documents between SO's

I want to do this multiboot with different hard drives and if I can, choose when computer is power on the SO.

Whats the next step? I need to remove the Win10 ssd from my computer, plug the clean ssd and do the Hackintosh?

Then I connect both drives and choose the boot on BIOS? Thats all?

Thx a lot.