Gary, Model A carbs are pretty simple. So much good data on rebuilding them. While I've done many other carbs during my life, I just did my first Model A carb and it was easy and it runs like a champ. I did cheat a little and use all the flow tested jets from Renners.
A tip from our club's Model A Guru, don't use one of the thicker gaskets (copper) that mate the carb to the manifold. The thin gasket between the carb and the manifold will do nicely as long as you've flattened the mating surfaces. I also took time to flatten the mating surface of the carb halves. Good luck.