Based on his description I'd said it's this one:
IN STOCK. SHIPS WITHIN 3-5 BUSINESS DAYS CNC machined from 6000 series aluminum and precision TIG welded, this battery tray is designed to fit the 2nd and 3rd Generation Toyota Tacoma equipped with ATRAC (TRD Off-Road & TRD PRO) and allow fitment of a second battery in the engine...
www.offgrid4x4.com
Should note that it's slightly incorrect. It won't necessarily fit all 2nd gen TRD Offroads in 2007 or 2008 either. Some (like my 2008) will still have a vacuum brake booster and those will have the ABS pump on the passenger side of the engine bay where this tray is intended to mount.
It should fit all 2009+ those AFAIK.