Looks like a fun list, but like Mantis said i think you are being a little stringent on troops.
Also, your HQ is really expensive for 1000 points - have you considered taking a MOTF instead?
It would be quite fluffy with the Iron Hands, he gets free artificer armour and free power fist attacks with the servo harness. You could still give him the shield to get an invulnerable save.
His wounds suck compared with the CM, but you do get bolster defences - you could sit your scouts in a 2+ cover save on a home objective and they can still fire.