You can also get the schematic for the Mark series EQ from any of the schematics on the web for the Mark II through Mark IV. The EQ design has been tremendously consistent over the years. Just google for "Mesa Boogie Mark IV schematic" or something.
My understanding is that it can be difficult to inductors of the correct values and type. The values are shown on the schematic. The other parameters that are used for selecting a specific inductor type (design) are not given. So, you may have difficulty in getting it to work just right.
Good luck.
Chip
