Time for an update...
re-thought the water inlet side of the machine.
Here is the new configuration
the relief valve is now hidden between the brew and steam boilers and NO MORE NPT pipe fittings and I got rid of that goofy Parker ferrule/npt adapter thingy !!!!
It is VERY tight in to the machine without crowding things too much, especially the solenoid coils.
I still have the hot water tap mix setup and solenoid to fit in there but it should slide in there quite nicely.
By the way, this build was enough excuse to get a new 1/4" stainless tube bender.
the new bender is all stainless constriction and uses roller shoes to form the tube.
my old bender used a slide block design that scratched the tubing all the time and would leave surface contamination on the stainless that would rust.
here it is with it's big brother; the 3/8" roller bender I already had.