First, this is in the wrong section.
Second, I would say to look out for BKBT Jango helmets. BKBT, from what I have seen are very nice helmets. They sometimes pop up on here, sometimes not. Dont go with a rubies, they are too small especially if your noggin is larger. Even if it is small the rubies does not look too good.
Now, if you are on a budget and cant afford a helmet upwards of 300 bucks or more, then go with the rubies and modify it. It doesnt look good stock but with some repairs and mods, it will look pretty good. There is a tutorial on Mandalorian mercs on how to keep the shape of the rubies helmet since it is thick vinyl material.
You can even scratchmake your Jango if you wish using the WOF plans.