That body is never going to give you the look of the LeFay instrument because the Lefay is an open grained wood (probably ash) while the Warmoth body is alder, a nice uniformly tight-grained wood. Start with ash, sand to 220, and apply your dye (I have had very good luck with India ink, actually) and you're probably there. Then apply an oil or satin wipe-on poly for your topcoat per manufacturer's instructions.