Improve existing User Manuals(7 documents)

Hello We're looking for freelancer's help to improve our product's user manuals. The user manuals are already made but they look little unprofessional as user manual writer wasn't native English speaker. We can provide a 1-hour skype training for 10 days so freelancer can add (or edit) the existing user manual and replace all the product screenshots in 14 days time. There are 7 user manuals in total. I've attached one user manual for reference. We can provide product training to freelancer for 7 days, Daily 1 hour so that freelancer know how to make it look better. I feel 75% of the user manual is already made and freelancer will need to write 25% completely from scratch. if needed, the team can also help freelancer on the screenshots. Screenshots need to be replaced too. P.S. We normally revise our manuals every 6 months and are planning to come up with the video manuals once we finish the text manuals. So if freelancer work is found satisfactory, we can award the same video manual project to freelancer. Thanks