Alclad is very popular and it has a range of colours that can be used. It can be tricky, but can give great results. They do have very shiny paints, but the ones most people use for an NMF finish are not.
Here’s a couple of mine done with Alclad that will give you an idea of the finish.
There’s currently an NMF GB running,
http://cs.finescale.com/fsm/modeling_subjects/f/29/t/154399.aspx
You might want to think about signing up, you will get some great help there.