Have you been selling your Balm Mushrooms that you get for completing Le Wow?
Amulet coin and Battle Chateau gives quite a lot of cash, too.
I have a Female 6IV Jolly Starly with it's Hidden Ability and Double Edge as an egg move from my Staraptor I've been breeding, and you're free to have that it you want it.
Just level it up to a level 57 or 58 Staraptor (whenever it's last move is), which you can do easily in the Battle Restaurants in Lumiose City, make sure you keep Double Edge, then breed it with a Ditto of preferably a 5IV or 6IV one, and put the baby Starly's (even 5IV ones) that have the hidden ability onto GTS for legendaries/anything.
I don't have a high IV Ditto to spare though sadly, although I'm sure someone else'd be able to help you out.
From my 5IV Starlys I've gotten a Rayquaza, Shiny Groudon, Shiny Giratina, Shiny Palkia, Dialga, Reshiram, and two Kyurem on GTS.
Just put something like HA-Jolly-EgM-5IV in the description when you deposit it.