There is a lot to be said for the 1uz/mkII swap, even in stock form. Smooth, quiet, better weight distribution, no BHG issues, no cankcase evac issues, lotsa low and midrange torque, no need to go to higher gears or to bring the boost up,... and about the same power as a BPU'd 7MGTE.
And there's nothing wrong with the sound of a well tuned V8!
I'd say it's a great swap alternative, Considering you don't have to do ANYTHING special to it to make it live. (MHG, hand lapped deck, ARP studs/bolts etc.)
Speed parts and custom machine work get real $pendy real fast!
Jamie