I removed m0n0wall from the WRAP box and "installed" a LEAF distro (branch actually) called "Wisp" which is a small version of LEAF meant for CF cards.
I just downloaded the binary and wrote it to the CF card, and it works perfectly - except for the silly and well-documented "pc_keyb: keyboard jammed" error message. Other than that, it seems to work smoothly - boots properly and gives me a shell prompt when I quit the configuration screen.
The 7DS query page is finished: see it in all its glory in HTML! (Page subject to change.)
Of course, it is far from perfect, and I still need to work more on tying the different pieces together and making them robust.