Mike's kit is easy to use. But if you don't want to try it, he is also the 'smith with the most experience with TC trigger jobs -- or for that matter, TC ANYTHING.
On trigger jobs, you can usually have your frame back 2 weeks from the time you sent it in -- pretty decent turnaround in my books.
While Bullberry does make some accurate barrels, I have seen several botched trigger jobs from their shop. I would NOT use them for that particular service.