I don't know how much room you have- if you can get something sharp in there to put pressure on the wire, it shouldn't take very long to very quickly hold your tip to the joint and pull the wire from it.
Jeez...
One of those new Aeons
A Sunwayman V11R, modded with Nichia 219 and a wide optic, and trits
Zebralight H502d
Maybe a DEFT EDC, just for giggles.
And that would be all I needed.
EDIT: and batteries, of course!
Back on topic... the only 4sevens product I've had, a charger, had to get replaced 3 times-the first three were faulty, and each ruined one 18650 battery through overcharging.