Digital BW, The Print

I'm thinking of making up a poor man's monotone septone set for a 2200
out of the quadtone MIS full spectrum inks. Is anyone familiar with
how dark the light grey of a quadtone set is compared with the
lightest tone of a K7 set...should I be thinking of getting 3
additional tones by simply mixing eboni with DG; DG with MG; and MG
with LG...or would getting the lightest tone from mixing LG with base
be a better approach.

Re mixing... I was thinking of pouring two 4oz bottles into a virgin
pint bottle, tipping it end for end a few times and letting it sit. Is
there a better way?