I recommend just trading in for a 2015 five-speed corolla and then move parts/all the work you've done to the car to the five-speed. The CVT car's ECU wouldn't work too well with a standard transmission so you'd have to reprogram it, and it's also a massive job to just switch transmissions. Switch out a bunch of sensors, redo the center console to accommodate for the new shift action, and etc. Also, what would you do with a used and extremely complicated CVT that only works for a 2015 Toyota corolla?