The mockup already exists and it's even running. Yes, the application exists, but a need something simple to run on a PC and show the screen as a webpage, localhost.
The funcion is to read values of a local database (same machine) and update them on the webpage elements. Images are gonna be read from c:/ path, no db.
The interface also need to have buttons for enable/disable controls, as they already are in the application. As the webpage updates, those values must be post to the database.