Ahem....EV conversion....ahem.
Seriously though, it's awesome to see all your latest projects and I look forward to seeing whatever you decide to do with the Tercel.
I would go old school. Modify what you already have. Do a proper two cylinder delete (like what has been discussed a bunch in this forum but rarely actually attempted). A 41 HP 750cc Tercel, anyone? Then I would maybe find an small turbo to gain back some WOT oomph for "those moments", when a wild pass is necessary. Maybe. Probably a nightmare to get boost to work properly with a de-nutted Tercel engine, but hey, adventures like this are what most of us dream of, right?
Arduino based management system?
DIY TerEcoBoost?
Just sayin.