That's the one.
Wanted to get hold of a copy & get out the maps & elevations of the valley to see how likely it is.
I remember reading somewhere that the Rameses tomb allegedly used as the entrance is much higher than the tut tomb, and I also can't see how Carter could both repaint & reseal and get out himself - unless there was some major restructuring done.
Still - we know he was very unscrupulous and had no worries about lying, thieving and similar, so it is possible.
But I would like to actualy read the thing properly & see what evidence is offered.
For me, one of the reasons to credit this were the way the Chariots had been sawn through - not much use in the afterlife like that, and AFAIK (which might well be wrong) is that funerary objects were supposed to be in usable condition.