theres a couple of guys on the austarlet forums that have done Paseo/GT conversions, and also quite a few that have done Starlet n/a to Turbo conversions. it is a very straight forward conversion. being a 5E motor to start with, the 4EFTE Turbo motor should physically bolt in. with only a few minor mods might need to be made being throttle cable and possibly wiring for the TPS as the turbo is open/close the n/a is positional TPS. maybe intercooler piping, although if you choose to keep the topmount then all you need is a scoop in the bonnet. only other thing to look for is the wiring loom for the engine sensors. theres a big chance that the 4EFTE ECU will plug in the standard 5E loom. i have done the conversion on a Toyota Corsa that originally had a 3E motor, earlier single cam version of the 5E, and was pretty straight up, even so far as converting my automatic to a manual setup and all the manual shifter, pedal box etx all bolted into factory provided mounting holes. i had to do a few more mods in the engine wiring loom as my loom was totally different for the 3E, but the 5E to 4EFTE loom should be pretty close.