We trained Zeke much the same way as what Beloz has said it took 7-10 days (same as kids it can be shorter or longer to toilet train) ,he has only had 2 accidents inside both our faults for not reading his new signs that he wanted to go out. Puppy pads didn't work with Zeke (he enjoyed eating them though )
It was grass training for him, every time he put his head down and started sniffing and searching we took him straight outside to the same spot of grass gave him a voice cue and stayed there til he had gone to the toilet, we kept him on a leash all the time with us unless we were playing. It was a great way to avoid missing anything and helped us to read his little quirks.
If the crate you have for Missy is huge then she will most likely do her business down one end to avoid soiling her sleeping area (crate dividers can help with reducing her sleeping area) once Zeke was toilet trained we then crate trained him to sleep overnight, until he was trained we did shifts to take him outside to the toilet, for him it was 4 hours in between toilet breaks, I would go to bed at 1 30 - 2am and OH was up at 5-30 - 6am then he would stay with me at home or at work all day.
Now he sleeps in a bed in the bedroom after a last toilet stop (he has to do 1's and 2's before we come inside) around 11 30-midnight ish and wakes with us at 5-30 6am but if he needs to go to the toilet in between he will nudge us awake, he has woken us 3 times so far and he is 26 weeks old now.
ALL kittens are devil spawn wrapped in cuteness!