#1 is a little pale for an RIR. I was guessing Buff Orpington, myself. Brown Egg
#2 is something blue. probably one of your rare breeds. If she is, my money is on the blue Marans, since she doesn't seem to have a beard or a headspot. EDT: Just checked MPC's actual listed stuff you may get. Could also be an Andalusian, Blue Wyandotte, or Blue Orp.
#3 looks bearded. Easter Egger?
#4 has feathered feet, and the same markings as a Silver Laced Wyandotte. Silver Laced Cochin? They are technically brown egg-layers.
#5 does look like an EE, with those green feet. Very few purebreeds of chicken have green legs.
#6 with the white feet and partridge colouration may be a Partridge Olive Egger. Rare Breed again. EDT2: After checking rare breed list, agree with above: Speckled Sussex is more likely.