Heyo, I'm going through a similar process at the moment and have a lot of the same questions, so I can't really comment on most of what you're asking, however..

Have you got a maple fretboard on your TL-1? If so, you're going to have to finish it with lacquer or poly, or tru-oil, the same as your neck. Unfortunately lemon oil alone will not do enough to protect a maple fretboard. The overwhelming consensus is that it needs a hard wearing finish.