if you're willing to have your car off the road and put in money to the engine conversion... go the 3s-gte. I hope to have my 3s-gte in about a month or two :)
The 4e-fte will fit the mounts and bolt in but 1.3L turbo wouldn't be as much fun as a 2L turbo ;)
Failing those two have you considered a 4a-gze? or the 4a-ge 20v? You have to get the engine mounts fabricated for them to fit but they haul. I wouldn't suggest turboing the 5e-fe and not reinforcing everything but then again it depends.. the starlet isn't throwing that much boost so it might be ok if you don't thrash it... once again though where's the fun in that? hehe
when you buy an engine it's better to get the whole front cut.. ecu, wiring harness, transmission, engine.. some places may even have a "boost kit" which includes upgraded brakes, axles, etc to handle the extra power
Basically... if you're going for easy, 4e-fte... if you're going for power, 3s-gte or 4a-gze... as it is people with the starlet gt or 4e in their paseo are either just in front, in line or behind depending on the driver when I race them in my 92 paseo with 2.25" exhaust, headers and pod filter with cold air, I've raised the compression in mine a little too.
