the only place I have found matched v belts, is at industrial supply house like grainger or motion industries. and the prices for these belts are usually in the $65 dollar range for a matched set and usually they are special order. but its been a while since I looked for some. I always had the problem with my ac cars that one belt would always squeal since you could never get one completely tight.

sorry I haven't gotten the pics up of the low mount ac setup but we've been crazy busy now that the article came out in mopar action.