I explained how complicated it would be simply due to all of the variables at play, but after someone else approached me about the idea and whether the information was available somewhere, I decided to give it a whirl.
I'm no programming genius, so creating software to do this would be rather impossible for me to do on my own.
So - in lieu of a soft ware program, I have just been creating a list on a separate link within the genetics section of my website.
The actual link to the page is:
http://www.gouldiansgalore.net/reversegenetics.html
Obviously, it's a work in progress.
Also, since doing the possibilities for Head + Breast + Body color would probably take me the rest of my life to compile, for now, I am just compiling potential pairings to produce specific body color mutations [e.g., I want to produce a Pastel, what birds do I need?]. I also like to think that the Body mutations are usually where most people get tripped up, and also where most people are interested in learning what two birds they need in order to get that specific outcome.
I hope it's helpful.
I'd appreciate input, though - whether it's advice on how to make it easier to understand, or suggestions on other mutations to include - just looking for some feedback thus far!
Thanks!
And interesting 
