Very impressive! I imagine speaker enclosures (especially for our z) wouldn't be very challenging for you? To design a 3pc MDF false floor (to replace the oem hardboard one) for a 2+2 that will be ~ 2" higher than oem one and would incorporate to built-in a .5 cu ft enclosure on either side of the spare tire well and between the two styrofoam tools/jack holders? The area ahead of the spare tire would be reserved for the amp.