Revit Programmer challenge: Revit Add-in Backup Tool

I was going to make a script or something myself, but I figured there is a API-guy out there waiting to make something useful and simple like this.

Challenge:  make a tool (can be an application, script or CMD) that locates and backs up all API add-ins from Revit add-in files.  Ideally, this tool would place the result in a ZIP file with subfolders that are logical and could be 'restored' to a new / clean installation of Revit.

Go!

Note: if you are going to 'take the challenge' I recommend that you post a comment so that you can co-ordinate with other coders if necessary.

Some of my notes below:

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Need at least 2 x add-in folders and any referenced dlls

On my PC:
C:\ProgramData\Autodesk\REVIT\Addins\2013
C:\Users\Luke\AppData\Roaming\Autodesk\Revit\Addins\2013

Wiki - addin locations:
http://wikihelp.autodesk.com/Revit/enu/2013/Help/00006-API_Developer%27s_Guide/0001-Introduc1/0018-Add-In_I18/0022-Add-in_R22

Environment variables:
http://www.askvg.com/list-of-environment-variables-in-windows-xp-vista-and-7/

CMD Reference:
http://ss64.com/nt/