
I'd be researching a lot longer than 8 months, I'd be contacting the chosen stud owner or kennel a year ahead once I'd done as much research on their lines and their dog as possible.
The main pitfall is that you may not have seen the dog to go over, or seen what he has produced, especially to bitches of similar lines to yours, so it's very much a shot in the dark.
You may find you don't get what you hoped for in the first generation, and may simply need to keep something for the bloodlines, and get better results in the next generation when you breed back into more familiar lines, so you need to look on it is an long term investment into expanding the gene pool.
It goes without saying you need to research the health and faults of the lines, so your not inadvertently introducing faults not found here or making worse any issues the breed may have.