Digital Marketer

I am looking to understand the marketing costs for my health and fitness business where I am the sole employee/owner. I used to be a Marketing Strategy Consultant, so I have a good understanding of what I need, and how data is used to optimise marketing. However, I don't actually want to do the marketing myself. I am hoping that you could provide rough costs for:
The building and running of a simple website (plus a 'booking appointments' funtion)
SEO services
Google Business Profile optimization
Content creation and posting on social media channels
Ad hoc FB and Instagram ads
If you could differentiate between initial costs and on-going monthly costs, that would be helpful.