How to draw up a technical task?

Question

Preparation of terms of reference

Colleagues, I decided to make a web portal or service with my friends, it doesn't matter.
The main page is news and articles about the crypt, and after registration, it becomes possible to use two services. Both are powered by the crypto exchange API.
So the question is: how to competently set a task for a freelancer and what stack to look at. So far I
see the following functions:
Minimal CMS for posting articles
Authorization (possibly without a personal account) Database
with exchange quotes
And the most important task is the user's transaction history and certain calculations with it CMS. How to solve the issue with multiple API requests from your server How to build a competent database
Help to decompose into tasks that need to be set for freelancers.
This project is an experiment for me, I would like to meet $1000 from design to MVP, really?

Answer 1

really, a design for $300-500 is quite suitable