Hey Joe,
I would start by using the Kelso cock from breeder “A” and the Kelso hen from breeder “B” as your Seed Fowl. Breed them, and try to produce as many offspring as possible. This will improve selection. The following breeding season, select the best Brother and breed him to his best Sister. Again, produce as many offspring as you can manage. This is phase 1 and phase 2 of the Founders Program.
If you have not done so, make sure to read the “Founders Program.” Here is the link: (click here)
Also, here is the “Quick Start Guide” for the Founders Program. (Click Here)
These links will answer most of your question and guide you through the process.
But, please, feel free to contact me if you need any clarification or have any questions. That is what I am here for.