(Old thread, but just saw it because of the previous reply...so this could be useless now...or maybe help someone else out instead of the OP)
The second link doesn't work...
But I did a quick eBay search as well for wigs for the twins and came up with one
(even though it says pink, they don't look pink) that is for two wigs and they are already styled. They cost more than the ones you linked, but they do come with free shipping and you wouldn't have to style them. I buy almost all my wigs on eBay anymore, and have no complaints with any of the sellers there.