3tgte will be the easiest by far, why try and do it yourself
when toyota has already designed and mass produced them
iv also thought about it and you would need a 2tgeu block and its the same as the 3tgeu so its just a lot of hassle and a few mods to swap it all over, if you are after a good setup you will
run efi, all the parts you will need are going to be 90% a 3tgte
anyway...