Dude! Don't spend 5 grand! I've got 5000 dollars worth of video equipment, but I only spent 1500 on mine. Cuz I it it all used! It all works fine!
For 80 USD, you are not going to get good audio. I am a 16 year old Filmmaker, and I am pretty successful. I've been doing it for 5 years or so. I spent over 1500 dollars on my DSLR and audio kit, and it still isn't perfect! By the way, I got it all used. I have over 5000 dollars worth of equipment. Just don't expect good audio on your budget. Sorry to be so negative. I have a Canon T4i and a Sienhouser professional DSLR audio mixer. I use Sienhouser shotgun microphones.