Adding a package called "leon-bootloader" to Angstrom

I wonder how to handle this. Typically Angstrom downloads source packages from the internet as needed, however in this case the bootloader is never supplied as a separate download. Downloading and extracting snapgear linux to get at it doesn't appeal, neither does distributing it by myself. I am also uncertain whether Angstrom would accept a complete source package in their download system for such a niche market.