Fuel Cell filler questions:

1) I know the cell needs to be covered from the passenger, does that include the filler neck tube? If so, can the filler neck tube be doubled to be considered sealed form passenger compartment in a hatchback?

2) Can a window be modified to allow the quick fill to be put through it? Not replacing it, or removing it. The location is perfect, straight shot of tube, short and would be the easiest location on a car that has NO flat panels (Toyota Celica).

Thoughts?

Thanks,

D