Need help positioning Hats/Masks properly

I can’t seem to figure out how to get the position of these hats and masks properly.

Any guidance would be appreciated as I’m a bit confused about the ang and pos stuff.

Chains mask Item shop code:

Attach them to a bone or adjust their offset angles and pos

That doesn’t help me figure out what I need to the pointshop item file

With PAC3 I was able to get this info:

http://pointshop.burt0n.net/items Read that, it tells you about the bones you can attach it to, also tells you about changing the pos and angles.