Hello,
I am a GIS Freelancer. I have looked out the attached pdf file, excel, kml and also watched a video of how to do this task. I can definitely help you out in measuring the docks (marina) using Google Earth pro.
I have an expertise and hands-on experience of using most of GIS software. I have successfully completed varieties of projects in the past.
Moreover, I can give you the result within time and with accuracy.
Hope for a positive response.
Thanks.