Am I Going To Be Happy With This Camshaft?

You should like it. It is similar to the Comp XE268 I have in my 340, and I love it.
I don't think a stock converter is going to work well for you. I converted to a 4 speed many years ago. While my car was still an automatic, I can tell you that the 727 with a stock converter would kind of stutter a bit from a dead stop if you didn't power brake it a little. Other than from a dead stop, it was fine. I put a higher stall speed converter in (2500 or so) and it fixed the problem. When I came to a stop, the engine idled fine, and when the light turned green, I just took my foot off the brake and off I went. I had 3.55 gears, and it was real easy to chirp the tires from a stop and going into second.