Would anyone know offhand if Joe's extended valve cap is long enough to cover the gauge port hole in a Disco tube?

I plan to install an AR2078LE (thumb hole) stock on my 2260 HPA. Already have opened up the trigger slot to accept my Marauder trigger group, as well as the tube diameter. Only problem is that with my 13 ci bottle on a 2260 tube, I would have to cut the LE stock to fit - something I don't really want to do to such a nice stock! My thinking (right or wrong) is that the Disco tube is long enough to still have the bottle underneath the tube without having to cut the stock. Yes, I realize it will be a bit more "nose-heavy", but I can always add some weight to the butt if needed to balance it better. Seeing as I'm running a regulated bottle, I don't really need the gauge or the (somewhat) restrictive gauge block, hence my original question...

Thanks for any suggestions you may have,
Todd