Script to automate cleanup before starting a screencast

[cksachdev]

1. Hide the Menu bar on the top (Hide, not Auto hide)
   or
   Cleanup all the icons in the menu bar, something similar to Bartender app
2. Hide the Dock in the bottom (Hide, not auto hide)
   or
   have only certain apps listed in dock (Configurable)
3. Hide the icons on the Desktop and probably set a specific wallpaper(configurable)
4. Set the screen resolution to a specific dimension(configurable)
5. Start recording using screenflow

Could you please guide if it's possible to achieve using script and necessary resource to achieve this.