What this is is five challenges in one. There are already checker scripts for each of the individual challenges, but what you want is to combine those five challenges. It would be a nice feature for a future version of Project-GC to be able to have a feature whereby scripts could invoke other scripts. Setting aside the requirement of than not being allowed to use the same find for multiple challenges, this may be doable, in a future version, if ganja1447 agrees.
For now, it is certainly doable, but it's quite a bit of work to write such a script for just one challenge cache. It would be a bunch of work, and odds are the script would not be much reusable for any other challenge caches because odds of someone else coming up with a similar 5x5 combination are low. In the time it takes to write a script for this one, a developer can instead write a script that is much more generic and would serve many more caches.