Meyer actually has sexed silkies, but they are more expensive. Minimum April order is only 3 chicks but shipping is costly. If you can pay for it, that would be almost everything you need with only 1 extra chick.
How many are you looking for? Most hatcheries are sold out until 2023, but they have some available here (minimum is 25). If you could find a few families to split with, maybe that would work?
https://www.freedomrangerhatchery.com/shop/product/bantam-silkies/
If not, Meyer, McMurray & Ideal...