I also plan on swaping automatic to manual in my double cab, maybe this is what you are looking for. I noticed you have a supercharger pic, well i just bought a supercharger and plan to install it soon, i was wondering if the supercharger is loud, like can you hear it wind up.
I did this on a civic once, yeah a civic. What was required was the tranny, shift linkage, pedals, ecu, and axles. As for the truck, I would think it might just be the tranny pedals and some wiring on the ecu (if not a new one altogether). HOwever, that old civic had a manual clutch pedal, and the tacos have a hydraulic clutch. I would think it would be involved, but do-able.