I guess thats another option. Im relocating the washer bottle and overflow bottles so ill have a bit of room on that side. As well as relocating the battery to the boot. So ill have coil/ignitor setup on the passenger side, and i guess i could put fuel on the drivers side.
Wouldnt want to have a crash though :S
Oh yeah, almost forgot. The problem with a sealed box is that you can get a positive pressure from the fumes and this can detonate. Hence the requirement of having a vented box. Obviously not to the cabin etiher, to the outside world.