This is how I randomized everything. I rolled a D6 for the first set and then another D6 for the second set. A third D6 Roll determined the first rank and second rank set. While I could have just used a D12, I like the extra rolls involved.
If we're not missing any ranks or factions, here are the first two sets.
1. RKA
2. FWLM
(Just for giggles, I rolled a D12 to see what would come up. First roll yielded a 1, the second an 11.)
So it looks like we'll be implementing the RKA first and then the FWLM. I guess it's fitting seeing how either nation ceases to exist after the Jihad.