I think we currently have enough textures to keep coders busy for a while and a steady supply of new ones.
Currently, all we really need are a few good suggestions and testing.
We will definitely do a variety of polearms which should cover your needs to some extent.
It'd be nice if your clearer for people who aren't as intelligent (me) as you,
The Meaning of Life, the Universe, and Everything.
For the idea of the armor i would suggest that if you don't want to create a new gui for the player witch is what most do. I would suggest you to make a workstation( workbench, anvil, etc.) to make the armor and as i guest you want them to be interchangeable I would suggest something like flaxbeard steam mod armor but more flesh out to the way you want it and more theme related.
By the way about your pole-arms that the other modder mention is that some one suggested a pike witch is only one kind of the pole-arms and even though you called them all pike you have idea to add others... them again you wanted to focus more in the armors...