There’s a post related to it here My UDK project was dependent on DLL bind. I'm porting so now I....? - C++ Gameplay Programming - Unreal Engine Forums
I’m not sure if the OP is going to turn it into a plugin but that would be super. I’ve downloaded the Sixense SDK myself but I’m not sure how to go about getting it in, if nobody makes any progress then I might give it a whirl but it’s a little out of my comfort zone to be honest. If I do manage it I’ll be sure to share 