Heads up: on recent trip to Cabo I hand carried my Trident and got asked questions at customs. They got really exited when they found out there was a camera and that it cost more than $500…
Turns out there exists a “specialty camera” category (aka drone tax). Which clocks in at 16% of anything over $500. They changed my customs form to say I did have commercial goods and produced a nice looking form so next time I might not have to pay up again.
No amount of arguing about not selling and willingness to show possession at exit went anywhere. Luckily, I got tagged on the $969 Kickstarter charge basis (per old emails off my phone), and not what their web search would have yielded. And only 30 mins entry delay.
TL;DR: keep drone in luggage, protect the camera lens w/ some tape and carry receipts.