What my rig is worth?

Hi, I would like to know what you people here think my rig might be worth

1 X ASROCK H81 Pro BTC
http://www.asrock.com/mb/intel/h81%20pro%20btc/

CPU: 1 X Intel Celeron G1840

PSU: 2 X LEPA B1000M MaxBron 80PLUS Bronze,
http://www.lepausa.com/maxbron.php

GPU: 6 X ASUS R7 370 STRIX 4GB

6 X 1X to 16X USB powered riser
1 X Samsung HD080HJ 80GB
+ 1 X Power switch and simple aluminium frame

$1200-$1300 or so. The fact that your GPU's are R7 370 kills the value for mining.

Thanks for the reply.
If anybody here is interested in buying it, feel free to make an offer.