NL2 Factory fuel cap hole location

[Hayseed4]

So I managed to score a NL2 fuel tank and filler neck for my 72 restoration, I got it all cleaned up, painted, wired and installed under the bed. The only thing I have left to do is to drill a hole in the bedside for the spout to come out of. Can someone who has one installed give me dimensions of the hole and exactly where it mounts in relationship to the top and front of the driver side bedside?

Any help is greatly appreciated. I will post some picks of the tank installed and how I did it a little later. I know this tank will be very valuable on those long summer road trips.