Hmmm, I've seen perfect IV'd shiny Pokemon on here go for an average of 100TBT. Does that sound reasonable?
Also, I do have Snivy in my collection :-]
So I would be able to breed you a shiny Snivy (5IVs with a good nature + ability)... if you're willing to wait for it, that is! I have another breeding request that I got asked to do and it's pretty huge so I'll be working on it until next weekend. You would probably have to wait until October for a shiny Snivy, if you're still interested :-x
registering your FC now btw, am available to trade now if you're ready :-]