I've used cosp lay f u a few times myself. Once for a Neptune costume and again for Jupiter. They listened to every detail I wanted for Jupiter to make it look like her Classic/R/S fuku right down to the smaller bow and adding stripes to the collar. I really like them but I never commissioned a costume they didn't already have up from them. The review thread in this forum might be a good place to start for commissioners. I'm having a bit of trouble myself finding one I can trust. :/
Could be attending Phoenix Comic Con
Aboslutely going to San Diego Comic Con
Maybe Anime Vegas?
Sailor Jupiter, Alice, maybe steampunk?