I too rather like the Hyperion model, however colossal are not usually a good starting point.
Starter games usually occur at a battlebox (about 12 pts) to 15 point level. Hyperion at 20 points would be the entirety of your list. Starting at a small level and then adding Hyperion would be a better idea.
There are three Warcasters whose spells and feats would be affective with Hyperion, Ravyn, Ossyan, and pVyros. Check out Battlecollege for the write up on the synergies.
http://battlecollege.wikispaces.com/Hyperion
You could build good 12-15 point lists around any of these.
I.E. The alternate Journeyman league battle box for Ret is Ossyan, Sphinx and Banshee for 11 points. Add Arcanists to support your jacks and Mage Hunter Assassin to round out your 15 points. Ossyan's feat gives extra dice on Range attacks and would be a good one to use Hyperion under.