I think you are on the right track - your contract does not state a time limit to complete the title nor does it state how often/many show you should enter.
I would try to communicate with your breeder your concerns and drawbacks right n...
I would second the Natural Balance. I know of some dogs that have had GI problems with other foods but that have tolerated the NB very well. You can also start with a single protien/carb. formula.