Being that the N/S grills are fairly new, I am highly skeptical that it would
indeed need new burners unless it was seriously abused or neglected.
I would give it a thorough cleaning and inspection before replacing.
The N/S series are a little bit more difficult to work on than the older models
in my opinion. Nothing serious, just a pain in the a** at times. I do not
care for the igniter system, just something more expensive to fix. The
main complaint I hear from folks in the WGC is that the E/W version is much
more suited when using the rotisserie as michaelmilitello mentioned.
Free is a great price though.... LOL Post some pics when you get your hands on
it. I will be happy to offer any help that you may need.