Trust me. You can do this! Seems like alot but once you go through the process, you will see that it's not so bad.
To create the Virtual Contact Sensors:
You need log into the SmartThings IDE/Graph
Click the My Locations Tab at the far left upper corner
Will probably have you log-in again
Click the My Devices Tab
Click New Device on far right upper corner
Name: Contact 1 Virtual (Whatever you like here)
Label: Contact 1 Virtual (Whatever you like here)
Device Network ID: contact1 (Again can be whatever you like)
Type: Simulated Contact Sensor
Hub: Your Hub
Done! Easy as that.
Follow the instructions here on how to install custom code for Smart Apps
CoRE is here:
Direct Link to CoRE code:
Select All and Copy
Now you are ready to paste this into the IDE section under My Smartapps/New Smartapp/From Code.
More info onCoRE is here including a link to the wiki.