Although I wanted the TRD Pro, instead I built up a brand new TEP because my wife wanted the heated seats and sunroof. I ended up paying a total of $42,600 for the following;
TEP w/KDSS
Toyota TRD suspension complete (dealer installed)
Toyota TRD wheels/BFG KO2's
Toyota TRD grill (personally installed)
Because of the discount on the TEP of $4k I was able to get a lot more into my truck for less money overall while keeping everything under warranty. Yes, I had to do some more "management" to get this done.
Obviously this is not for everyone, but it's an option if you cannot find or unwilling to wait for the TRD you want. Or if you want the sunroof and or KDSS.