First of all, motor specs are great but as I keep preaching here until I'm sure everyone is sick of hearing it,
measure your current draw! There is no substitute for taking your own real-world measurements. Of course I understand in some cases (especially 1/6 scale) taking a measurement probably requires having a speed control in the first place since it wouldn't be safe to just hook up the motors directly to your battery. So there is a bit of a chicken/egg conundrum and you may need to buy something first, in which case the specs are the best you have to go on. But even after you buy a controller, still you should take a measurement so you know whether you are within reasonable operating conditions or not.
But yes you are correct, you will need to buy two standard RC car/truck brushed ESCs, or a suitable dual-motor serial controller.
Of the latter you could look at the
Sabertooth 2x25 (two motors at 25 amps continuous/50 amps peak) or the
Sabertooth 2x32 (two motors at 32 amps continuous/64 amps peak). Both can handle well above 12 volts so that is no problem.
Of the former (RC ESCs) there are a plethora to choose from. Castle Creations and Holmes Hobbies are two high quality brands but there are plenty of less expensive foreign brands as well. ESCs in this range are likely to have various settings and options which you may need to adjust for best use with the TCB, and it might be easier to do the setup on them with standard radio gear (ie, just plug directly into an RC receiver), and only after the settings are saved then connect to the TCB.
Remember when using an RC speed controller that has a BEC (virtually all of them), you must remove the center pin from the servo connector before plugging it into the TCB! There is more information about this
in the Wiki.
I have been waiting for someone to use the TCB in a 1/6th scale model. Whatever controller you choose keep us posted and I will be happy to help you with any setup issues you encounter.
Out of curiosity what brand Tiger are you building?