I've got a few cues that I'll be selling. Not "high end" but not production, $1000 - $2000 ish.
Someone recommended UPS through Pirate Ship. I may try it, used to do Fedex or USPS
with tubes in triangle boxes. I have some 4x4 double wall with a shipping tube, bubble wrapped with sleeves from Atlas.
I think the packaging will be ok. Not sure about Pirate Ship but I've seen them mentioned in a few threads.