Change key caps to match different layout?

I messed up and bought a Huntsman German QWERTZ layout, when I needed US QWERTY. The Razer.com sale price made me too excited.

My question is, if I set my OS to US QWERTY and buy a KeyCap Upgrade kit (since it's US/UK keys) can I just replace the keys and have a fully QWERTY set of keys laid out properly? Or are there not enough switches, or switches in the wrong place to do that?

Thanks in advance.