Background removed and images made tidy

I have a number of screenshots in low resolution.

I need the back grounds removed and the images to be free from distraction of the metal machine in the photos.

I also need two versions, the original with out back ground etc and a second version to be in pencil outline of the machine parts.

The lines to be clean as possible.

I am also not looking for something amazing just enough to show the engineer what the machine looks like in a drawing format.

I have 22 images to be edited and converted.

Thank you.