I absolutely love these boots and have found them for half-price ($300 down from $600), but I would want to be able to wear them during the winter. Since they have a leather sole, would it be possible/advisable to have a rubber sole added on top of the leather to make it more durable and resistant to snow/ice/salt? And speaking of salt, what is the best way to protect the leather (the boot, not the sole) from road salt and snow? I would just wear a pair of Sorels on those really heavy snow/slush days, but when I'm not wearing them whatever boot I buy would likely be my go-to pair. I was looking at GTs, but I like these much much more.