Glad you're enjoying the calculator Brad! And thanks for the catch on the printing issues. We'll take a look at those and try to get them fixed soon.
If you order the Masquerade without a power cord, then you simply have to run your power wiring to the terminal block which is mounted near the right corner inside the bottom structure. Normally your power wiring should exit your wall behind the Masquerade CIH fascia about 5" above the bottom right corner of the frame (and 2 1/2" in from the right side). The terminal block can't easily be moved in our design, but you could have your wiring exit your wall at the LEFT side of your system (5" above the bottom and 2 1/2" in from the left side) and run your wire down inside the bottom structure over to the terminal block. In your pre-wiring, you'd simply need to leave enough wire hanging out of your wall to reach the terminal block (the length of wire would need to be roughly equal to the width of your masking system plus a few inches for slack).