you need to ship via Ground! FedEx Ground will do it!! Its the Lithium batteries that will get you. Us Canadians are sticky when it comes to Muricans! haha JK. All North American Lithium shipping laws just got tight even here in Canada. Ensure you follow FedExs requirements for shipping your lithium.
FYI Flying in Canada requires a SFOC (Special Flight Operations Certificate) Probably equivalent to your 333!!
You will be fine. If you are buying a Solo direct from the company, save some $ and time and buy from B&H. Free shipping over $99 and if you are on the Eastern part of Canada, you'll get it 2-3 business days.