Swapping Logic board with a upgraded board.

Howdy,

I have a macbook air 2013 (6,2). It wont turn on. I took it to a repair shop and they confirmed the logic board is bad. The last 4 digits of the serial number is FKYQ. The macbook air has a 1.3 GHz Core i5 (I5-4250U) with 4gb of ram. I was checking http://www.powerbookmedic.com and found logic boards with more ram and higher clock speeds.

Is it possible to upgrade the logic board to one of the following?

• Logic Board, 1.3GHz, 8GB 661-7477 http://www.powerbookmedic.com/xcart1/pro...
• Logic Board, 1.7GHz, 4GB 661-7478 http://www.powerbookmedic.com/xcart1/pro...
• Logic Board, 1.7GHz, 8GB 661-7479 http://www.powerbookmedic.com/xcart1/pro...