Here is the problem with the mods you listed- realistically, your only going to actually be able to get one of them- the saber touch. Good luck getting a helix or an empire, for a reasonable price that is. I have been wanting all three of those, just got a saber touch from the classies this week, and its definitely cool. Even better is all the options you have if you order one new. You can choose 3.7v/6v, varivolt, 5v regulated, then 3 sizes, all sorts of colors, finishes, different caps, turned lines. You can truly make it your own. I just might have to get a new one now, they way that I want it.