can't you just download it and then put it on a USB drive? Change your drive order when booting up and make the USB with Win10 on it the first thing that is checked.
As for mechanical keyboards, they're the shyt. You can go real expensive, but I just got a Razer, and I love it. It was $89
My mouse costs about $90 (it's an old Logitech they no longer make). You want the highest DPI possible, preferably with a button that controls DPI too. It'll take some time to get used to a very high DPI mouse (it moves REALLY fast), but once you're used to it, the precision is