Hi Kirk
If you're short on vertical space, you can try one of 2 approaches:
1) Move more bricks into the walls section, and out of the "fixed" areas (roof and floor).
2) Leave the walls completely blank, and move everything into the roof. This should get you pretty close to the default KoL layout, with everything in a big scrollable area and the toolbar fixed to the bottom of the screen.
I haven't ascended under a moxie sign for a while, so some of the MCD stuff is still untested. It seems that I'm incorrectly testing for a bus pass in inventory instead of desert bus pass. I'll upload a fix as soon as I can test this myself. In the meantime you can try changing $item[bus pass] to $item[desert bus pass] (line 2044 in charpane.ash) and see if that works. I'm assuming you don't have a meat car or pumpkin carriage in inventory, right?