Using applescript to create spaces and launch apps
To add one Desktop Space to each monitor/display:

do shell script "/Applications/Mission\\ Control.app/Contents/MacOS/Mission\\ Control"
delay 0.5
tell application "System Events" to click (every button whose value of attribute "AXDescription" is "add desktop") of group 1 of process "Dock"
delay 0.5
do shell script "/Applications/Mission\\ Control.app/Contents/MacOS/Mission\\ Control 1"


One can modify the code to add more desktops.

To switch to a particular desktop / fullscreen app in a dual display setting, e.g. Desktop 3:

do shell script "/Applications/Mission\\ Control.app/Contents/MacOS/Mission\\ Control"
delay 0.5
try
    tell application "System Events" to click (first button whose value of attribute "AXDescription" is "exit to Desktop 3") of list 1 of group 1 of process "Dock"
on error
    tell application "System Events" to click (first button whose value of attribute "AXDescription" is "exit to Desktop 3") of list 2 of group 1 of process "Dock"

end try


There are discussions out there about turning an app to fullscreen mode with script.