Heading out to Newfoundland next week with a body and 400 lense, one 50mm lense and was wonder about the best way to take this with me. The measurements on Westjet for carry one baggage is (21 in. x 9 in. x 15 in.) , personal item is (16 in. x 6 in. x 13 in.). Weird why their is different sizes, as both end up being carried on. My current camera bag is larger than this so checking it in instead of carry on is not something I would like to do. Any tips on how to may sure it comes with me on the plan, no issues with buying a different case. Thanks.