They will ride a big Cylon mecha called Sauron.
Your description is epic and I would gladly pay ten bucks to see it. However, you need something dinosaurish. Therefore, I think they should ride a Sauronisaurus Rex, instead. It could stomp around emitting Polish sausage farts and flatten on Ewoks with impunity.
Computers are unreliable, but humans are even more unreliable. Any system which depends on human reliability is unreliable. -- Gilb