‘87 Customization

So I’m a little confused, and want to see if this can be changed.

The ‘87 Predator is customizable, but not fully?

His mask and dreads can be changed but nothing else about him.
There seems to be a strange issue here.

To me, personally, the ‘87 looks more like a new set of armor than a whole Predator.
Don’t get me wrong, it’s beautiful when it’s completely movie accurate, but it the mask can be changed, and the dreads can be changed, and the original mask can be worn by other classes… then why can’t the skin of the ‘87 be changed… and why can’t I put the ‘87 armor on other classes of Predator?
I wanna be a heavy class with Jungle Hunter armor.
Or maybe a green skinned, red dreads ‘87 Predator.

The customization on behalf of the ‘87 is unbalanced in a way, and effects the other classes too, because if I can wear the bio mask, why can’t I wear the bone necklace trophy or armor?

Just seems weird to me and hopefully opens up new customization options.