Yeah it’s a brilliant airport, it even has all the current WIP areas! Also I had a surprise when I saw the trains moving as I came in to land 26L - hadn’t seen trains in MSFS before… he’s got the monorail in there too.
With all the work that’s gone into it, well worth a cheeky little donation too imo 
For the Gatwick challenge we used to do in the big sims sometimes - using a 320 and without exceeding any inherent aircraft limitation (ie no overspeed, over G etc, but alternate law is fine) take off 26L then 180 and under the magnificent bridge to pier 6 (watch the tail!) and then another 180 to land back 26L… start the timer when you apply power to take off and stop the timer once the aircraft has come to a stop!