This one went through a long and torturous build process over almost two years. All I can say is don't believe the "advice" you find on talk_ass. However, in the end, it turned out to be a pretty nice instrument.
The key is the shallow angle between the saddle and the string. A proper guitar bridge has a sharp break between the saddle and the string. This shallow angle causes the classic sitar buzz. This is a very easy part to make from any decently hard wood. A scrap of fretboard blank is ideal. A little experimenting, and you will get it. Then you can convert any guitar into a "sitar".