I agree with you.
It would be worth you saving one of them from KN7000 as midi and loading into musecore to see how it looks.
However, I would only go to the extent of all that editing if I wanted to sell the arrangement to someone. I used to do that years ago when the programmes were much more difficult to use. It used to take a day or two of editing, I reckon it would take 2 or 3 hours nowadays.