Help! Trying to find an XCOM2 Template Head to build a MOD Helmut.

I’m very new in the modding world (in fact once I’ve powered through all told this’ll be my first real MOD… ever.) I can do the work on blender but I don’t know where a proper sized head bust to build on is. I’m afraid if I put my all into the wrong head’s shape that by the time I run it through XCOM2’s Modbuddy it’ll appear over/undersized, phasing in thru part even crashing the game because it won’t mesh properly.

In short, need a proper head to build a proper helmet around it

Could someone point me to a link for an appropriate pre-made blender project head(or for that matter the entire body even) usable as an XCOM2 template to build clothing atop of?

Thank you.