To follow-up on what Dave said, we had to purchase extra gears as well. We couldn't find the EXACT duplicate items either, so had to buy non-broached gears.
We don't have a broach kit, as the full kits cost upwards of $300 dollars. We also do not have an arbor press, another $100 or so. Therefore, we had to call upon some local teams to see who would be willing to help us with the broaching.
After a couple quick emails, I was able to find several teams in the area that were willing to help me with our broaching needs. Turn-around time was 1 day! Try to find that with any other supplier!
So, even though YOU do not have the resources, there are over 1,000 other teams out there that just may. Don't be afraid to ask another team for help. The broaching took an hour of their time, and they were more than willing to actually do the work for me. (I had to fight them off...)
Good luck,
BEN