I want to buy a 2013 Air 13" with a non English keyboard, but I'd like to swap the different keys with English ones. There are about 12 different keys in total.

I've found a broken 2012 Air 13" on eBay for a very low price and wanted to get it primarily for the keys, as single keys sell for around $3-4 on eBay anyway.

But are the keys the same on the two models?

I know how to remove and replace the single keys, so that's no problem. But I've seen in the past with other Mac laptops that the white scissor mechanisms under the keys are often different from one year's model to the next.