Because I'm working from the other direction; I'm starting with a basic-barebones Debian Lenny (from debootstrap) and adding in the one or two chroot-related Deblet hacks (like the Adobe flash player from Maemo with Stskeeps' brilliant little hack) as I need them. I'm not sure the reverse-deblet approach would gain me anything.

That being said, it would be nice to have a couple of those dummy packages with the trick "provides" lines in the fatalsaint repository...