How much can a project with the following functionality cost?

Question

Electronic commerce

Good day, colleagues, I ask for your help in assessing the cost of developing a site with the following functionality, because he is not able to evaluate himself on the basis of the cost of his hour and the duration of the project (potentially ad infinitum).
Required functionality:
personal user accounts, registration,
online viewing of video stream from cameras in the personal account, stream transcoding (vlc)
, video recording by motion
blog, static pages, question-answer section, sending tickets to the necessary
admin departments with the ability to fill in the text component of the site and changing the settings
users have the ability to add their cameras
recording by motion - python script using openCV
without the use of frameworks, web face in php, coding standard - Zend
project is designed for a dedicated server costing around 4k rubles per month, pulls simultaneously around 100-150 cameras with stream quality around 360r.
Clarifications - I am the only one in the project, along the way I perform the role of a designer, layout designer and system administrator.
I ask for help in estimating the cost of implementing such functionality or how much they should pay if you work on a project for a salary