Need a programmer to edit a site on MODx with JS knowledge

The following changes must be made to the printing site. The site is similar to Tekst ukryty, the functionality and the constructor can be viewed there. It is necessary to install and configure the already ready-made printer, plus make minor changes to it:

1. Rename the interior border to the Protective grid. By default, it should be off.
2. The text in a circle inside the print is asymmetrical, you need to make alignment.
3. The field diameter should be 39 by default. And the choice of diameter should be in the form of a text field, where the client enters any value from 10 to 99, the diameter of the print itself does not change. The specified diameter is only sent in the text of the order notice. The owner's post office.
4. Picture in the banner with the inscription "Fast implementation of your solution" / do on the subject of the site (document with seals and etc.)
5. In the header of the site, make the button "Order" like a button on the site Tekst ukryty. To open a similar form with fields for a specific order form (New seal, order for print, etc.), and when you click on the button New seal or stamp, the form for this order is opened.