As a avid reader and gamer, I have to agree that "Saga of Seven suns" would indeed make a awesome mod.
First to clarify some stuff;
1,Do you wish to make the Ancient war of the Present?
2,Ildaran's, Hydrogues, Faeros, and Verdani,all only have 1 main type of ship
3,Wentals can not move themselves!!!, I suggest in this case that instead of a multiplayer mod do a RPS (Story)line.
4, What are you gonna do about the faeros? They live in suns, which if you were to make this as a mod, would be totally out of proportion.
5, You have to make Gas giants habitable, + you have to be able to build inside them and see inside them.
6,Ildaran's work in Septas, Cohorts, and Maniples, of warliners (Which are by the way the equivalent of a Kodiak[give or take]) How do you plan to get minimum 343 Warliners at a cost and level that both the player and the game can cope with?
7,I will be working on a mod of sins based of Saga but the mods production is some time away(In the mean time I will be happy to help anyone out).Unijoule,