Anyone have a good source for lactated Ringer's injection saline bags here in Austin?

Costco has stopped carrying Lactated Ringer's Injection USP sacks, at least for now.  The cost through my vet will bankrupt me.  Does anyone have a local or Internet source for them that they can recommend?  The vet wants ~ $32 a bag.  Costco used to sell eight bags for $20.

ARGH.