How to organize a price list for services in the MODX admin panel?

Question

MODX

Good day, friends! There is a one-page site on modx on the topic of repair of equipment. It has a section with a list of devices in the form of images. When you click on the displayed device, a pop-up window opens. The window contains a list of device malfunctions, a block with a description of the selected malfunction, repair cost, and a feedback button. There is only one resource in the admin panel - Home. How can you organize convenient price management - in the admin panel? It is required to be able to add a new device and immediately add a list of faults with a description to the device, while the number of faults may change. It is desirable that it would look human, or at least tolerable.
I tried to solve this issue through MIGX, but I get either a fixed number of faults, or a mess in the admin panel.
Please help me to solve this issue!

Answer 1

Minishop2 can probably be adapted.