I did have a good silk/spirulina/fruits recipie that I tried on a batch of hatchlings a while ago, it worked very well and they grew like weeds but it was expensive and smelled a little creepy... I can dig it up if you're interested. In the mean time stay away from honey b/c they can't digest some of the components.
N.B. cgd is one of the cheapest easy food sources for multiple cresties. (it's so easy I feel like i'm cheating

)
Good luck with the food hunt and let us know if you find any decent recepies.