So Segwit2x is on hold for now so why not support Core 15.0.1, (the latest release).
I make guides to make DIY Bitcoin Full nodes that support the blockchain, enforce the network rules and help distribute the transactions to miners.
It's a really cheap and easy project. I've included a full hardware list to get you started along with all the commands with their description to simply copy and paste. No previous experience needed and you'll learn along along the way.
Plenty of options to choose from, whether you want an LCD display too, go dark and support anonymity with a TOR node or just keep it simple.
http://pinode.co.ukHas the full Library to browse, all using approx 10w of power or less!
A completed node below, it displays live transactions, price and network statistics. A good talking point that sits on my desk.