looks like you have a partridge (1st pic) second pic I can't tell - it doesn't look buff - white chicks tend to have a yellow buff tint to them so... with the wing color i see and you say a dark saddle, I'd say you've got either a grey or a splash. I'm leaning to a grey (silver partridge)
looks like in the last pic you also have a very cool little buff and 2 whites
super cute and great deal.
ya know with silkies it can 3-8 months before you can tell the sex - lol