what to buy and cube first

Hey guys! I was wondering how should I expand my gear, as in what should I buy first, and what should I be cubing before everything else.
I have around 4.5b atm ( I know is not much) and this is my current gear.

 Spoiler

I have a clean sharktooth cape (trying to pos chaos it) and hat, shoes and overall kind of suck, so I'll get one more to pos chaos them.
So I'm asking you guys, I don't know what to buy/craft next, maybe a dom pendant, a new belt, idk
BTW this is n Windia.