Best way to move HC character from Soulseeker to Spineshatter?

Hey,

I currently have a character on the Hardcore realm Soulseeker, and my goal is to eventually move this character to Spineshatter.

From what I understand, if the character dies on HC, it should be automatically transferred to Thunderstrike.

My question is: is this the correct / only way to do it, and once the character is on Thunderstrike, can I then use a paid character transfer to move it to Spineshatter?

I just want to make sure I understand the correct steps before doing anything risky.