What is the approximate labor cost to develop and maintain a library project like Flibusta?

Question

CMS

A group of enthusiasts plans to organize an online library, like Flibusta flibusta.is .
I would like to get advice from experienced web developers regarding the assessment of time and money spent on creating such a project, taking into account a similar load and volume. The project is not supposed to be a two-click site builder of shareware hosting, but a full-fledged portal. Preliminary plans - to place everything on AWS services and a separate web face on a separate hosting. It is necessary to understand how many specialists will be required to develop the site and support it. Estimated monthly budget for paying for AWS, CloudFlare, etc. (excluding development) - about 200-300 dollars.
If for evaluation it is necessary to clarify the data on the load, storage volumes, etc. - Ask, I'll try to clarify.
UPD:
Rough estimates for the load: the estimated number of visitors is about 20,000 per day. If we assume that every tenth person downloads a book per megabyte, then the outgoing traffic is 2 gigabytes per day. The volume of the library is about 100 gigabytes
Who can roughly orient on the technologies used in order to more specifically formulate the TK? Like: such and such a CMS is taken as a basis, such and such a database is attached to it, etc.

Answer 1

One technical specialist is needed, the development period is a month. It is possible to attract a layout designer at the beginning. Further, content managers are needed, they can be dealt with, or you will fill them yourself if you are enthusiasts.

Answer 2

You need to go from simple to complex, do not think about heavy loads and cloud storage yet, but take this into account when choosing tools. You need a project manager who would competently prepare the TOR, prototype and all that, and supervise the whole process. We need one competent web developer, designer and content manager. Of the tools, I would not take CMS, but would choose some popular framework and a popular database like mySql or postgreSql. I would have washed down everything on a cheap hosting for 200 rubles. And then I would solve problems as they come.

Answer 3

If you really want Amazon - AWS for the server and Amazon S3 for storing blobs (books)
The engine would not be considered in your place, but wrote something of its own, for example, in Go, since you are planning the load.
The development time for such an engine (if everything is done beautifully and correctly, taking into account the development of a convenient front-end, ux and design) is from two to three months, I
think pdf-ok), the bottleneck will be the drive

Answer 4

Economical and fast: WordPress front-end.
Files put under the table in the most literal sense.
Take a regular dedicated server for 50-100 euros per month in the Netherlands for front-end and file sharing.
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