Thanks for the help everyone!
It looks like this might not be too bad of an option after all, and I found a seller (swimming creatures) which has a doa guarantee.
After one commenter advised against the mixed colors, I have decided to go all blue with this Amazon listing .
This seems to be the consensus.
I don't have a LFS or breeder I'm aware of nearby, so my options are this or big box stores.
After reading what everyone has to say, I have decided to get These shrimp from Amazon.