couple of other notes:
Recommend that you get 4 birds, and not just 2. If one were to die, then there would be a lone chicken, and chickens need at least one chicken companion. So, if 4, then they should make a nice chicken family of sisters, even if one dies for no apparent reason (it happens).
Don't discount getting some showy breeds either - maybe a polish, maybe a Faverolle (5 toes and feathered legs), crested (like Legbar), muffed (like Ameraucana or EE), or a laced variety. Often a lone polish can be a target of feather picking (of those showy head feathers), but not always and if given enough room and good personalities and feed with enough protein, then that should not be a problem. Anyway, a small flock, but can be eye catching: Big JG, showy Polish, speckled Sussex, muffed Ameraucana for example. But pick what is appealing to you and your boss!
We sold a few birds at auction several months ago. A family bought 3 of our birds bc they wanted some more "eye candy"! They bought our Salmon Faverolle, Buff Polish, and a bantam Ameraucana - a nice mix of visually different chickens.
Good Luck!