wow you've made some great progress! Good luck on future sections :)
Now that I think about it, there are levels that I cheesed and "conveniently" ignored the cheese so I see your reasoning. I bet the lowest amount needed is probably around 6. That sounds crazy but hear me out:
1 moving such as X swap
2 delete such as zap
3 copy such as... copy
4 altering words such as head
5 continual loops like if
6 bonus word because I probably forgot one (edit: it was cat)
1 2 3 could probably be combined into only two separate words.
even 4 or 5 total words wouldn't surprise me, but a minimum of 8 would.