Hell, Fuji took a 'single' into Gatwick as well. They even stopped all the other traffic for him.....
As it happened only one other aircraft, who managed only a single hold, but your version sounds a lot more exciting. The nice people at Gatwick didnt charge a penny, given they realised it was an emergency. Considering the acres of space and how quiet it is at certain times of the day it is a shame they cant find a way of encouraging more traffic. There GA portacabin is quite cosy even if not a patch on the facilities at Oxford or Leeds Bradford.