Cute Wolf your idea works but, you forgot the obvious

Hastati-All you need is any colour of clothing with some cardboard to pin to your shirt painted gold to pose as the very limited bronze protection, and a fake shield and don't worry the shield could be any size cardboard or anything else, Aemilianus won't drop you for having it not standardized.

Hastati takes no work at all, unless your the only person in the world with nothing to pin to your shirt to pose as the limited armor, and no cardboard for the fake shield, and no money to buy spray paint.

If you pick Macedonian the above post explains all.