The engine might be able to handle the textures but milkshape is not able to handle 300% more triangles:
Spoiler Alert, click show to read:
And you've seen how good the already look in-game (without the accessories):
Spoiler Alert, click show to read:
Besides, I've working on them for too long and I am sort of anxious to go to the next project.
End they still need work.