Still Stuck on Tile Information

Brilliant, thank you. That's twice you've had exactly the information I needed. I've been staring at 1's and 0's for so long I knew there had to be a simple pattern to it, but I couldn't crack it. Hopefully over the next couple weeks I can put this stuff together into something working.

There is one oddity I've noticed that isn't accounted for that you might find interesting. On the bridges in Narshe , the scaffolding above the bridges masks the sprites regardless of their z-index. There's nothing odd about their tile properties (which would be 0
00001001 10001111, so pretty common), but both the top and bottom sprite are masked by the layer 1 graphics. Oddly, if you pop open an emulator and remove layers 1 and 2 and walk across those tiles the sprite is still masked by the layer 1 graphics. You can also see this effect on the stairs in the fanatics tower I believe.