I personally prefer a torquey engine so 7M is easier and since I actually got the Turbo model I don't need fuss with swapping engines, so for me a lot easier than going to get a 1jz, not to mention if you do a swap like that on your own costs can add quick you may need to rent equipment, help, or other things, buy parts cuz some are broke or won't fit up and all that I doubt its gonna be 2500 flat you may even spend more, Good luck to ya and have fun but I'll just deal with modding this 3.0 liter and not trouble myself with the likes of swapping. If I were gonna spend all that effort I'd personally go with a 2jz and 6 speed swap or a Lexus 4.6 V8TT