QTR-Quadtone RIP

I am experimenting using just the ebony matte black with the rest of my Ultrachrome inks on 
my 7600, to get a little more d-max.  I use the Quadtone profiles for Enhanced mat paper 
and Hanhamuhle photo rag paper. Questions:

1.Should I make an entirely new profile for these paper-ink combinations?  

2. Has someone done this already, as I don't know how to do this?  

3. Is there a simpler work around for this?

4. Are there instructions for making new profiles, or adapting existing ones for these papers?

Thanks.