As maroon said changing a dark prophecy to an le shouldn't be to hard. Toughest part would be sanding the grips.
If you want to remove paint from a saber and give it a really good shine use these grades of sandpaper in this order 50 coarse, 120 medium, 180 fine, 400 wetdry, 600 wetdry and 1000-2000 grit paper. All of these grades can be purchased from walmart. Also get some aluminum polish and blue painters tape from walmart to give the saber a really good shine, but be sure not to get any polish on the painted parts of the saber since it can remove the paint job over time.
Heres an example of what i accomplished using those grades of sandpaper
http://www.saberforum.com/index.php?topic=5906.0Also be sure to sand in the same direction throughout the whole saber to keep it even and clean.
If your really stapped for cash you could probably get the same results using only the 50 coarse, the 400 wetdry and the 1000grit.