I have one for my setup in my Jeep XJ...sorry to be perusing your guys' section here, but I've been starting to dream about Tacomas and then I saw the low profile pop ups you have here...how sweet! Go ANYWHERE...with all the goods!
I digress - the National Luna kit is awesome. I run my Engel fridge off of it with no fear of killing my starting battery. When I drive, I can hear the power pack switch moving to connect and disconnect depending on what my vehicle is doing. If the cooling fan in the engine comes on, the power pack turns off to leave more power in the vehicle. It'll reconnect itself automatically when it's done. Pretty nice!
PLUS - I like the portability. When I get a new truck, you bet it's being put in there...with minimal work!