It's $13.50 shipped here, no worries on the declaration as i'd imagine the import taxes are super there, "you can buy 6pcs and still won't feel a pinch", drop Serena an email. :) Add $2 for registered but that's not necessary.
https://budgetlightforum.com/t/-/72497?page=4#comment-82494
They are basically protected Sanyos, with a PCB current limit of ~ 5A. Slightly higher resistance than the unpro Sanyo 2600 due to PCB but not an issue in majority of the usage.
Where did you get the Trustfire 3000mAh flames? They are different in wrapped as compared to the 2400mAhs.