My latest pet project (apart from my 'leatherette' seats) is to put some 10mm chipboard on the drivers side 'wall' of the boot (behind the lining) in order to mount a fire extinguisher, some spare fuel, spare water and tools. Not a big job, but would require removing the boot skins, measuring up, cutting the chipboard to shape, securing/deadening the chipboard and restoring the boot lining. It is the sort of job we could do to 6-10 Skylines at once if anyone else was interested.