No, I am sorry guys, Coby is right, 50 is nothing, if you look at an array, that's 7 across and 7 down, that is not even enough for the bridge! At 2000, that array is 142x142. I know this sounds like a lot, but if you take something small, such as a BB or small beads (T1 LED's will work too), count out 100 and put them in your hand, you will see that there are far fewer that expected.
I would recommend buying the fiberoptic on a spool, then arrange it to a convenient place for all of your lighting and electronics. You just need to tightly bundle them together, clip the ends, and attach them to a light source and they will work. Plus, you will get better quality cable that way as well.
note: DO NOT USE SOLVENT BASED GLUES- this will destroy everything and you will end up with a HUGE mess. If I could use my Jedi mind trick, "Listen to the voice of experience!"...
Hope this helps guys.
Dave