Which platform to choose for organizing accounting in a car service and car shop?

Question

CRM

Good afternoon.
I don’t really understand CRM systems and development from scratch, but at the level of an anonymizer I can set up something or do it according to the instructions. We need something like this functionality to organize accounting for work in a car service and accounting for sales to a spare parts store.
The ability to make a list of work, indicating the cost, in order to subsequently add them to the work order
List of the norm of hours, so that they are subsequently reflected in the order work orders
The ability to calculate for each employee his Earnings
Document constructor for generating order work orders
Accounting for clients, their cars and services
Thank you all for the suggestions

Answer 1

Look towards 1C.

Answer 2

https://zippy.com.ua/
free accounting system with a web interface
There are orders for orders, an act of work performed, accounting for goods and materials, sales (auto parts)
There is a built-in one-line catalog and the ability to integrate with opencart.
tecdoc support planned