$94 for 6 birds isn't that bad. Just two can be in the 60s. They have to "overnight" the birds, and since they are live animals, need special shipping containers due to the whole bio safety thing.
Oh yeah, that sounds about right, and actually a little on the low side. It costs about $50 to send a pair (though I have had 3 Silkies sent in the same box, but they are tiny) In theory it should have cost about $150, 2 birds per box, so 3 boxes at 50 each. I think you are getting a deal.
Oh and if you aren't already aware the pullets will have their beaks trimmed. I guess they do alright, but it is something to think about.
Look on Craigslist or post a wanted add on here, you might be able to find hens closer.