Just some quick thoughts: How can we help? Say we could recompile and package some things like Xserver 1.13... or even less useful packages. How can we get them into a repo? I saw you'd started this git page, but I didn't see many files there.
I'm just running your rootfs from the original on my spare n900 with a broken usb port, trying to test it out. Currently the X crashes/freezes are my biggest problem.