Need to Set up data export for over 200 Systems!

Hi Peoples

Have an issue our company has been trying to work on for some time.

Basically we need a data dump of daily generation Kwh of the previous month (first of the month) for over 200 solutions.
We cant use the monthly reports that Solar Web generates as we would like 1 file with all our systems to merge into an html template for emailing our clients monthly.

Fronius have provided an API access key but am really in the dark about how to set up the data transfer as it requires coding and a script written.

Am looking for some help preferably from someone in Australia to help us organise this.

Obviously financially compensated. If anyone has and recommendations or is running the same transfer or has a solution would greatly appreciate it.

Thanks