[Plugin: that's my question] Expert advice please!

Hi,

I am currently developing a minimum viable product for my consulting business. As the idea has not been fully validated, I am not in the position to hire a developer yet. Furthermore, I’d like to think of myself as a quick learner :-). Using my limited (HTML, CSS) skills on web development, I’d like to use WP + plugins for this, if possible.

The following functionalities are needed:

Public frontend area containing:

A public frontend user registration form

Private frontend area containing:

a private user area, accessible with the user registration data (e-mail or username & password)

an extensive (100+ fields) conditional logic form, in which users can enter profile information

a portal in which all entries are visible to the user, in which users can edit and remove their profile information

a personal page on which I can publish information/advice to individual users, based on their profile information (in the future, I want this to be automated, but for now manually will do)

no profile sharing between users

Backend containing:

all information stored in a database that I can search by custom, unique field tags

A functionality to sort and edit all entries, for example by user or date

So, my question is: based on your experience, which plugin combination should I use to create this functionalities? Plugins do no have to be free, I would be glad to pay for a working solution!

Thank you very much for helping!!

Floris