Well... nothing got done yesterday... so today I did a little.
First I milled a shallow run on the passages that were at right angles to the table... and some small start around the upper portion of the #Rotor area. Also (after breaking 3 bits in the tiny holes) decided to put two of the larger cap screws in the area that the passage crosses over to the back plate.
Then I got fed up with the template... (3-in-1 oil was breaking down the 3M adhesive) ... so off it came (after I marked the corners of the block outline

)
Then I finished milling the right angle passages to depth...
I'm going to try and get the rest of the water passage side done tomorrow.
Cheers!