[Sikom]

Why would you want to buy a whole other computer just for Kali? It isn't stable as a main OS whatsoever... I guarantee that you won't use 3/4 of the tools on there anyways. Assuming you're not stupid, just use a fresh copy of Debian and install whatever tools you need on there. While it might take longer, at least your HDD isn't filled up with a ton of things you'll never touch.

I currently have no portable one that would suffice that's why I want one