/cgl/ - Cosplay & EGL

I need some informations about IW's Puppy print OP and JSK for a friend.
I looked it up on Lolibrary and there they say it both come in M and L size. My friend has a bust of 100cm would any cut fit her comfortable?

Another question would be about the price. The skirt was on Lacemarket for 30 - 40USD but what would be a good price for the OP/JSK in pink?
I've seen both on Wunderwelt but this shop is often a bit overpriced, any help would be appreciated.