Vampire Batman

Posted in Custom Workstation

So, im ordering a Revoltech Batman and I'm planning to make it into a custom with a headswap and some minor repaint details, however- im unsure what sizes would work with the Revoltech Batman figure. The options on ebay say, ML-1/12-6"
SHF-1/12-6"
Mafex-l/12-6"
Mezco-1/12-6"
Neca-1/10-7"
3.75"-1/18
2.5"-1/24
What do i do !?