A 'Jedi' by necessity would have to be a Mystic Adept. S/he could follow a Way, but the ideal mix would be Warrior's, Speaker's, and Athlete's Ways.
And why piddle around for fun when you can build something that actually
works, and falls within -- or barely outside, at the most -- the game's rules already??

Use the 'stiffened monowhip/memory plastic core' with the laser pointer in the hilt to help indicate where the blade is. Reach 1, inflicts monofilament whip damage, depending on the GM might use Blades, might require an exotic melee weapon skill. A critical glitch indicates chopping yourself up, and the wielder has to make a weapon skill roll when turning it off (though not on) in order to not accidentally slice himself during the dangerous moment when the memory plastic is going limp and is being wound in but is still outside the hilt.
Extend Missile Parry to deflecting bullets with a blade -- perhaps at a -2 or -4 to the pool. Figure out your Way of the Jedi, and voila' -- you have only
two things that you actually have to get past the GM, i.e. the monofilament 'lightsaber' and the bullet-cutting.