I would like the flooring as well, but maybe expanded metal instead of sheet metal (maybe a choice between the two) optional fold-over CB antennae mount, light tabs front and rear...I wouldn't necessarily want the holes for wiring pre-drilled as anyone that doesn't mount lights up there would have holes that could lead to a rusting problem...
shovel/axe mount, tie down cleats on the upper bar of the rack...
optional coverage of the flooring at the very front of the rack to give those with sunroofs the ability to open them...
optional canvas hand straps for getting up high on the roof...
sorry it's not better organized, I'm writing these as they come to me