" Cool, be nice to see this get finished off later."

-I have a lot of those projects at the moment, but i think i will finish this one off
Thanks for the tip about importing a higher subd level from Z to Maya.
I don't what you use for creating your normalmap probably ZBrush or Maya.
I use a program called XNormal it can handle a lot more poly's than maya and creates a quicker and better normal map then ZBRush.
It's also free
https://www.xnormal.net/1.aspx