If there's a way you can enter through the International Gateway, you're much closer at actual rope drop and may not have as much foot traffic coming toward you - people who enter through IG tend to go right if they want Remy, and left if they want Frozen (shorter walk to Norway).
When I rope-dropped for Frozen by entering through IG, they let us through to the edge of Canada and held us there. That gave folks for Remy a lot more space to 'fill in' close to IG. At rope drop, a good sized crowd started moving from Canada through the front of WS toward Norway. If you enter at Main Gate up to WS and go right, you'll be against that traffic headed to Norway.
It's certainly doable, but be prepared for walking 'upstream' for a time until you get around to France.
As for motion sickness meds, I didn't think it was needed but if you have any suspicion at all about it, I would come prepared so as to not wreck your morning by feeling bad after riding.