Trouble on LUKE SKYWALKER Force FX Lightsaber

Howdy people!
Sorry to disturb, I'm a new member of the RPF forums (Though I've already visited too many times this place as a guest).
I'm a cosplayer and a Star Wars lover as all of you.

My problem is that.. Like, a year ago, my girlfriend bought me the LUKE Force FX Lightsaber as a gift.
I quickly disassembled the sword to place the batteries inside, and in the process I broke it..

Let me show you:


Is there a way to repair it?
There was a kind of metal thread that got screwed and now I'm kinda afraid attempting repairing it..

Thank you guys.

 

I think it woudln't be too hard, with some electroni skills.
Otherwise there is a seller on eBay (JKsabers) who sells the batterypacks from various fx sabers. With some luck you find a luke batterypack there

 

Thanks a lot mate!