I had one back in the day.. don’t know the radius but the neck was narrow & tiny.
Easy to play, but between how narrow it is was & being LP scale, I sold it. It was just too different feeling for me back then compared to my other guitars.
The OG ones are great
You may be able to get strong enough boxes at a UHAUL or shipping place. I did that for a 5150 way back & it was fine (With padding added in the corners as mentioned above)
Similar to yours.. got to that facility, and disappeared
It was on a Facebook group
I have no other details but it seemed odd that it disappeared from the same facility