Look to one of the car audio websites or something like that... try stinger.com
How much wire do you need? and in what colors? I have a lot still left over from my mobile installation days... Let me know and if you need some basic lengths I might be able to help you out...
If I remember correctly, I have spools of red and black 10 or 12 gauge power cable and several colors of 18 gauge cable as well as 18, 16 and 14 gauge speaker cable. Then I have some high end 8, 4 and 1/0 gauge power cable... I might be able to help you out some...
Where are you located in East TN? I'm in Dayton, TN about 45 min. north of Chattanooga.