Nooice, and the idea for "fake" SP's is plausible.
I mean take a look at the Romans for example. We can somewhat create some good imitations of their armor and technology, but we can't ever really make a true piece of Roman craft. (At least that's what I've heard.) But our reproductions sure look nice, and are still pretty effective. So making reproductions of Spartan II's, while maybe not being as awesome, would still be beneficial to the UNSC if only as an inspiration/honorary "force" to inspire citizens to rebuild without fear or something.
Really nooice character detail by the way. (Although were you the only voice actor?)