I've played around with similar concepts before, so here's some ideas.
1) Do you have a way to make any of these guys dragon based (I think Dragonborn can be applied to Warforged)? If so, have multiple Dragonfire Inspiration Bards, one of each elemental type, using Masterwork War Drums. This plus a regular Bard with a Masterwork War Drum will give you 10d6+2 damage added to all attacks for everyone within miles (2d6 fire, 2d6 cold, 2d6 acid, 2d6 sonic, 2d6 electrical). That's pretty huge. You can just make one Bard squad every once in a while... and even give them command drum beats, in case your telepathy gets jammed.
2) Every group should have one Crusader with Bolstering Voice, one with Leading the Charge, and a few Marshals with various boosts. They can make the rest of the group better, in addition to providing healing.
3) You do realize these things are going to go out of control and attack you eventually, right? I'd recommend creating a self destruct sequence using a chain of Explosive Runes (assuming blowing up the runes counts as an attempted erasure). Build an underground chamber (using burrowing allies or a Lyre of Building) right under the forge and AI base that the AI doesn't know about, with a chain of runes coming up out of it that, when read, will blow the whole area to pieces. If the AI goes rogue, Burrow to that spot and take it out. Or just leave an undead minion (like a 1 HD small skeleton) in the room and have some alternate means of reaching him (ring gates, perhaps) so you can tell him to read the first scroll.
4) Level 1 Binders using Malphas make amazing scouts. Use them.
JaronK