Input on a checkpoint backup program for F@H

I have an idea for a little program and was wondering it was feasible and also if anyone here could possibly program it.

What it would have to do is backup the contents of a single directory to another specified directory on a set interval.

In particular, I want an app that will backup the Folding@Home directory on a regular basis. The idea is born from losing the odd WU here and there after a sudden crash or freezeup, 75% of the time the unit will revert back to 0% and it would be nice to restore to the last saved checkpoint.

I don't program but it seems this could be a very light app to code but of course I could be wrong on this?

Also, if there is an app that already does this, please let me know.