I have a carpet layer in Missouri and this is how jim got a good deal on carpet installation. He answered an ad on Craigslist. first we emailed each other about 25 times he got the trust me then we set up a deal and he got two rooms installed for $100 he was very happy I was happy it was a win win situation so you see an ad on Craigslist it might not always be bad idea to use them sometimes is good you just have to well if you do what Jim did email them 25-30 times til you know you can trust them.
15 by 14 is 210 Sq ft which is 23.33 yards If installation is 5$ a yard Pad is 3$ a yard. Carpet you get a 12 $ a yard carpet (med. Grade) So right at about 500$ is what you'd be looking at