I promised I'd do it several months ago.
So I did it now.
The airport was made by TCLY, please, check it out here. I had to get rid of some details to keep the FPS up there, but it still takes a bit of a hit on the performance.
Totally not done yet, but if you're as impatient as I am, here is the mod for testing, report any bugs and stuff (PC only):
Put the .spmod file into C:\Users\<username>\AppData\LocalLow\Jundroo\SimplePlanes\Mods
DO NOT DOUBLE CLICK IT, it will disapear
Once again, totally not done yet, maybe I'll upload an actual version tomorrow or during the upcoming week.