Upgrading 2013s A1465 into maximum 2015s A1465 i7/8Gb

Hello there guys! Just bought from local analog of craigslist in my country - 2013s MB Air 11" A1465 for about 290$ (fully working laptop)

And i want to upgrade it for a maximum iteration of small 11" MB Air - 2015s A1465 with i7 and 8Gb RAM

Every part, except logic board itself (magsafe board, ssd, airport, screen, battery, touchpad, keyboard) are swappable (at least they're all marked "mid 2013-early 2015" even on iFixit). And logic boards 2013-2014-2015 - all having places for screws in same places. (they are ABSOLUTELY same on photos)

So, there's a question:) Can i actually swap logic board into newer and much powerfull one if, in theory, everything will fit? Does anyone ever did this before?

(290$ Air 2013 + 300$ for 2015s i7/8gb logic board OR fully working this rare modification of MB Air 11 2015 starting from 870-940$ on my local analog of craigslist, i think it's good way to save some money:) )

What do you think? 900-1000$ isn't that too much for a 7 years old laptop?)