First of all, sorry, I hadn't enough time to take a look at the import scripts at all...
Just for curiosity. Is it theoricaly possible to adapt dCore scripts to specify other distro stables (iex Ubuntu, Fedora, Archlinux, whatever..), instead of Debian repository?
Should we able to build a custom fCore using Fedora stable repo?
I know it's not supposed to work that way, nor should be a recommended thing to do. There's a great reason to choose Debian.