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It's an ultimate fx. Either Vader or Luke, I can't tell. The only reason I know is because I'm working with the exact same board for my next saber. Try this thread....

It could be done. In a hilt that long you could use a 555 with a series of flip-flops and a D2A converter. Well, one setup for each lead on the RGB. Yeah, easier with an Arduino, I just like discrete...

Curving wouldn't be too hard. I don't know how easy the curved dowel idea would be, I would probably just heat and add tension like tilling a bow. As far as lighting, you could just do a led string...

This has recently been discussed. Since most recent computers use piezoelectric speakers, this thread should answer your questions;
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I may be able to help, as I have just recently completed my first bare bones dirt cheap sink tube saber. If you used 1.25" sink tube, the 4AAA battery holder from TCCS will fit perfectly (a little...

If you want a quick cheap fix that you don't have to order, I solved that problem with my first saber by sliding a few rubber washers down the walls around the battery pack. In the long run, though,...