Customization of sales ticket in Odoo 13

I have an Odoo 13 enterprise version implementation and I am looking for a professional who can make a series of modifications to several reports and processes as the need arises. The first task will be to modify a point of sale ticket by making some changes, which are listed in the attached file. In total, there are 10 modifications, but as you can see in the file, some are extremely quick (deleting a few lines, adding a space, enlarging a logo, etc.). Therefore, based on our experience with other applications, we estimate that the workload will be two hours, plus some time for testing. The testing will be done by collaborating with us remotely, as we cannot share access to the server or computers for security reasons. For me, there are three keys to assigning this work: 1) The experience and professionalism of the specialist I choose 2) We will never question the hourly rate, but it is essential that the proposal for the required hours for development is reasonable, based on the experience we already have. 3) Communication availability: as I mentioned, this first task is a test, but the ultimate goal is to have a person with whom to collaborate consistently in developing our needs.