Just got new gear, I did this technique and it worked great! Only problem was when I Velcroed my shin pads they strap was getting in the way of my leg. Next time I won't make sure to Velcro them so tight :)
Yes they probably do but you would have to talk to a store manager at a hockey store and if they have any them buy a pair. If not, you can try and see if they will make a bigger size
Put your jock and socks on, pull the socks up past your knees, put your pants on, lace up your skates, then put your shinpads on and bring the socks down on top of them.
Do you do this with the top part as well? Last season the top of my kneepads with socks covering them kept popping out from under protective shorts. Was really annoying