Do a Google search for 'Cebby's Engine swap'. I beleive his was a 2nd Gen and he used a 1UZ FE instead of the 2 UZ FE. The only difference being that the 2UZ is a cast iron block, opposed to the aluminum block of the 1UZ (roughly 150lbs diff.). Within reason, the same horsepower/torque, aluminum intake and heads. Some say the bottom end of the 2UZ is weaker then the 1 UZ, but this is coming from 'Ricers' pushing these motors close to 600-800 HP without changing much!
I did follow his build and it was tight and a body lift being a must to clear the oil pan...which you will have to use a rear sump out of a later Tundra.
As for transmissions, they do make conversion bellhousings but all are located from companies from 'Down Under'. They also offer this in 'kit' form..BH, FW, clutch, blah, blah blah...just depends how deep your pockets are really.
If you do alittle digging, you will find that Toyota did put a couple of non-electronic controlled, fully manual transmissions/xfer into the Tundras. I would have to dig it back up but I do have model #'s for those transmissions/xfer's.
I am personally looking to throw a 2UZ into my 40 just for something different and will utilize a complete powertrain out of a later model Tundra truck. I am also using a hybrid cruiser/mini rear axle due to the center output....which you won't have to contend with on your truck.
I am sure I missed alot and have merely regergatated info that I have found here and there. I'll list a couple of websites that deal with the 1UZ/2UZ stuff and the conversions.
V/r,
IH8PVMT
www.lextreme.com
www.uzswap.com
Conversions:
www.dellowauto.com.au (can utilize a Toy. 3,4, or 5 spd manual with their bellhousing on a 1 UZ FE)
www.rodshop.com.au/toyota/landcruiser.htm (Bottom of page)