"This is a fan-made reproduction of the Master Systems Display (aka "MSD") of the Refit Enterprise from Gene Roddenberry's failed second TOS series. This graphic shows what the internal layout of the ship could've been like. I am currently working on converting an AMT/Ertl TMP Enterprise (1979 release, smooth hull detailing) to accompany this piece."
I think it's safe to say there there was no MSD per se for Phase II from which to make a "reproduction". Looks like someone took Jefferies' simple cutaway and plugged in a ton of detail a la an Okuda MSD. Nice work, but to call it a "reproduction" is misleading.