you could do a whole FI/C setup with the works it might end up working decent cause it intercepts all the outputs of the stock ecu, not like a safc which just plays with the maf or map signal, these are very different.
People generally only do this to keep the stock ecu and be emission friendly on an odb2 car though.
you could get an aem v1 which would do most of what you want plug and play just will need tuning, really you can't skip the tuning part but not a bad option with no emissions.
you can also use a gte ecu, but odb2 ecu's with the tt ecu mod have been having mixed results.
since you don't have to deal with emissions, just run an odb1 JDM gte ecu, that way you get a map sensor, can run larger inejctors with a simple piggyback, and not have to worry about any maf stuff.
I only basically recommend the odb2 tt ecu mod for those who are odb2 and have to be emission friendly, although the emission friendly part turned out to be the easiest part, and they run and drive but are just not boosting well. hopefully those members will figure it out and remove the doubt, but for know I only know the JDM odb1 works great, and honestly its the best one to use since its map sensor based.
so I would recommend going with the JDM odb1 gte ecu, or go aem ems v1 or v2 and get some tuning, both will work well. the gte ecu will be more factory reliable, but with the aem you can squeeze out a little more power from the tuning. just depends what you are looking for.
1995 Lexus SC300 5spd Na-T ( TT Ecu Mod + a few others)