Updated to 90hp:
The 48hp power supply that came with the case only provided intermittent power, even though it was well under the power consumption levels. I installed them all on the 90hp case with no problems and its working correctly. Which gives me a chance to build this into a more dynamic synth now that I have extra space. Also, lesson learned; I need to be careful where I source modules and cases/power supplies. Its probably better to buy new when possible.
That being said, the Mysteron and the Delay work amazing together. I’m running the Mysteron off the trigger, pitch, VCA, and VCF EG of the DFAM; then out to the DLY. After looking into things a bit more I think I am going to continue this synth build in a "West Coast" direction. Maybe an Elements or Plaits.