Q1: My first suggestion would be ebay!!! I've brought all of my wigs off there and havent had any problems!! Heres a few I found in a search, the first two are in Australia and I wasnt sure what time of lime green you were after so here are a few options anyways!
Q2: I can't get to mini-fest! D: Have lots of fun though!!!
Hope this helps!
No matter what age you are, or what your circumstances might be, you are special, and you still have something unique to offer. Your life, because of who you are, has meaning.