use the footbed that works underneath your foot and do the mods necessary to accomodate the hot spots on your feet. the numb toes are either coming from instep compression or compression behind the ankle bones. the salomon has a low roof, and a very definitive set of l pads behind the ankle. both will improve by simply breaking the boot in.
your approach, to spend money on a new footbed that is the exact thickness that you want for volume ( which by the way is going to change as soon as you go skiing ), is like tripping over a dollar to pick up a dime. ignore me and carry on if this is how you problem solve in your everyday life!
if not, get a grind or punch for your 6th toe and lateral side of foot, and open up a "window" on the top side of your tongue. and use the best working footbed under your foot. you will end up $ and satisfaction ahead.