Spark trade-offs are reduced range, doesn't do 4K video, 2-axis gimbal, etc.
I'm not sure what suitcase you have, but a Mavic doesn't even take up half of a hand-luggage-sized bag. I have a 40L backpack I use as carry-on when flying. In that bag, I can fit the Mavic (inc extra batteries, cards, controller, iPad, etc), sleeping bag, air mattress, stove and cooking gear, clothes and food for days of hiking.
I'm not sure what suitcase you have, but a Mavic doesn't even take up half of a hand-luggage-sized bag. I have a 40L backpack I use as carry-on when flying. In that bag, I can fit the Mavic (inc extra batteries, cards, controller, iPad, etc), sleeping bag, air mattress, stove and cooking gear, clothes and food for days of hiking.