I think that it's very difficult to set a price for you, as I believe each country has its own pricing system, according to its own rules.
But, when I work as a freelancer, I personally give the client two options: an hourly rate or a fixed price for the entire service, defining the estimated number of hours needed to complete the job.
But I agree with @RWelch on this one.
I am not a Cisco Meraki employee. My suggestions are based on documentation of Meraki best practices and day-to-day experience.
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