Hello, I can do this project for you.
Most probably, my rate will be higher than others , But I assure you that , I will provide robust and bug free code .I use agile technologies where I do testing frequently to assure that the scripts which I provide to my clients are 100% accurate and bug free with proper annotations .
I have more than 2.5 years of experience in google sheets, google apps script and API.
If you want quality work then ,Please contact me ,So I can finish it as soon as possible.
Waiting for your response.
Thanks in advance.