The last bit of work on the fret board is to carefully file the tops of the frets down so that they are all in the same plane (to "dress" them). Just take a good, sharp, FLAT, fine tooth file longer than the fret board and run it back and forth until it just hits all the frets. Take care not to accidentally ram the file into the bridge.
If the above process significantly "flattens" any of the frets, they should be re-shaped so that they have a crown on top rather than a wide flat surface. You can buy a special file for this, or you can take a small flat file, grind the teeth off the edge, and then polish the edge with emery cloth. You want to be able to file the sides of the fret without marking up the fret board.
Finally, go over the tops of the frets with fine emery cloth to remove any file marks.
Next: Make & install the nut
If you find any of this helpful I'd certainly appreciate a "tip" :-)