Well I stayed away from SEED as much as I could so all I know of it is from the Dynasty Warrior Gundam Series, which thankfully until the newest version had them with really small parts. So ha.

Also with what Zero said about Green's suits I would kinda Agree. Going from Avalanche to 00 7 swords is a bit of a big jump. If you want to go the 00 7 swords route I would say go with the regular 00 as your tier 2 then 7 swords as tier 3, or if going with Avalanche as your second go with [url=GNY-001F/hs-A01D Gundam Avalanche Astraea Type F`]Avalanche Astaea[/url] or the [url=http://gundam.wikia.com/wiki/PPGN-001_Gundam_Amazing_Exia]Amazing Exia[/url] as your tier 3. Mainly because I think it will be hard to develop the 00 and the seven swords system for the suit in the same step.