Output of products sorted by an arbitrary field WORDPRESS BACKEND

Good afternoon!

For the theme of the site on WP WOOCOMMERCE requires revision, you need to get into the existing code, and add some options there, the theme is self-written. We are talking about arbitrary ACF fields. Partially everything has already been implemented, some improvements are required. From us a detailed task, explanations of the project files, what is where why, and so on. What essentially needs to be done:

1. Display a group of arbitrary fields on the product card, and we specify which fields to display in the admin panel.
2. Display arbitrary fields of these products on the product listing tile, and we specify which fields to display in the admin panel.
3. Add sorting by one of the arbitrary fields, and by which field to sort we specify in the admin panel. (The site has a filter of products and of course pagination, everything together should work).

The details and nuances of the task that are there will be sent in the process, please indicate your experience the cost of an hour of portfolio work. Lets roughly estimate with you the approximate volume, break it into parts, and we will close it in parts.

Preference will be given to a candidate with medium-high qualifications, with "complex" projects in the portfolio. Periodically, we constantly buy out the volume of the watch.