Hi Mike,
there is now an i3 spin of Fedora [1], so you can start by looking at that.
Making the spin official would be a bit longer process, but AFAIK good
start would be preparing a kickstart file.
There will be further questions about what to actually include etc.,
but this could get you started
[1]:
https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.o...
--
Jan Staněk
Software Engineer, Red Hat
jstanek(a)redhat.com irc: jstanek