They're out of stock at Segrest--I can keep an eye on it for you if you are in no rush to get them. Ordering from someone on the forums with good feedback / success rate is worth trying IMO. They should have guarantees to refund losses.
I think that unless the shipper is within 1 day UPS ground delivery, you're likely to be looking at 2+ days for shipping or paying for next day air, which is usually a minimum of $40. A lot of fish / inverts can survive 2-3 days in a bag if properly bagged.
Hobby shippers, and some more frugal retail operations, usually save some more on shipping by cutting Styrofoam board to fit a box, versus buying one-piece molded Styrofoam shippers from a place like ULine--so make sure to order in good weather.