So, i readjusted some things and now I think im on the right way. The system would look something like this.
Including combinations of certain charges with partitions would mean some more hand crafting and special cases, but it would be possible.
Brilliant!!! :) :) :)
So in this system, if you combine “per pale” with “bendy sinister” you can get this, yes?
If so, then it’s perfect.
Here you also have ordinaries, which can go over the plain tincture, again in the basic colours.
And here you’ve got a big list of charges, for inspiration:
http://en.wikipedia.org/wiki/List_of_heraldic_charges
And some more:
http://etc.usf.edu/clipart/galleries/255-heraldry-charges