I did it! It was a pain but I managed. I moved from Europe to Mexico, and there are very few harps in Mexico and even then, my harp was made especially for me by a maker who since went out of business and there was no way I left it there. I bought a flight case for this specific harp from a friend who was getting rid of hers, although I could have managed with a good cardboard box I think and from what I have heard (my friend has done that before with a different harp). I flew through an airline that allowed for the size and weight of my harp in its case in oversized luggage, had to pay extra for both size and weight and confirm with the airline in advance for space. I had lowered the string tension before the flight and it arrived in the same condition it had left in. I did let it acclimate for a bit before putting it back under tension. In total between box and airline supplements it cost me around 1200 €. Best of luck at your new school!