Gamertag swapping is different to buying a tag, I wouldn't really tell anyone that you're swapping, so you might want to edit your thread, there's loads of faggots out there with things called "turboers" these things allow them to auto fresh a page until they get their desired tag.
You might want to open a little thread asking for people to bring in the tags they have, and your budget is $100, you won't get a popular name, a first name of a very popular artist and Wiz's quote "Taylor Gang Or Die" good luck finding your desired tag, I'll hit you up with some, not the best but will suit your budget.
Im new to all this gamertag swapping ect.. but iv been searching for the gamertag Michael, Wiz, Or TGOD. Im offering 100$+ or less. Message me on aim for any questions or concerns. AIM - xlm1kelx
If I were you I would lower your budget and get a less expensive tag. If you buy an expensive one its probably going to get taken back or jacked.. I mean since your new and all.