Mike,
The old, yesteryear WoodZotic was just a mix of two colors of ESI's WoodTux line of stains. One part "brown sugar" and one part "western cedar" is exactly WoodZotic.
AFAIK, there is no stain that will preserve the "natural" look of dry, sanded ipe' for any length of time.
For your size ipe' job, 4 gallons total of WoodTux stain should be enough.