The sword looks really cool! The only way you could make that cooler would be to use a custom model
Also I was just old thread lurking because I was bored and stumbled across something that may be of some help to you...
in baseitems.2da, the weaponmattype defines the weapon's sounds to use. By changing it '2', I was able to make the saber sound like a sword
So you could just change it to a sword sound or maybe even the flamethrower sound? I don't know, I just remembered your sword after I read that. Anyway I'm excited to see how it ends up.