Make the Copper Nautilus Armor craftable

Why would we need the Copper Nautilus armor craftable? Well, take in consideration the Leather Horse armor, what do this two things have in common? They both are the weakest tier of armor. So, the Leather Horse armor is craftable because is the weakest, why shouldn't it be like this for the Copper nautilus armor? 

Now I don't know how the crafting recipe should be, but at least using a copper item (block or ingot) and the Nautilus shell would be good. Additionaly, having the Nautilus shell necessary for the crafting recipe would give to it another use (because for now you use it only to craft the Conduit). 

I don't expect to have my idea approved, I just wanted to share it.