One very important thing I have learned recently is that there is no “standard” neck size for the 1/4 scale, unlike the 1/6 scale. For example, the hot toys joker head is significantly narrower than the 1/4 creg 5.0 joker head. It is also quite possible that the upcoming creg 6.0 will have an entirely different neck width, as well. I suspect that the custom 1/4 head being done by sculptor yk may be even different still.
Where this becomes an issue is when toribox makes the collar for the shirt, and the fit for the vest and jacket around the neck. If they use the hot toys head, you will most likely not be able to use any of the other heads as they will probably not fit in the collar.
I suggest you send multiple heads to toribox for correct fit when they are making the prototype. As expensive as this suit is, I would hate to see someone spend all that money and not be able to use the suit.
