thanks for digitising all this fascinating DEC MPS material, I'm glad to see this coming to light.
I was surprised to see that there was a DEC authored FOCAL for the 8008 for this system, known as FOCAL/MPS. Squeezed into 12KB with 2.6KB left free for the user program. Does anyone know if the various software tools for MPS have been found yet? there was a cross-assembler, editor, debugger etc for MPS, and now the FOCAL/MPS