Here is a book that I like. You are probably past all the “how to” information but it has a ton of good recipes. The author, Rytek Kutas, is Polish so you might find his history and techniques interesting.Its nothing fancy. A masterbuilt sportsman elite. I'm planning on building a smokehouse now.
My wife is Polish, and she wanted a Kielbasa like what she grew up with. She use to buy Kielbasa in her community in Chicago from an old guy who has made sausage for 70 years-he was from the old world. He is no longer around, so I tried my best to replicate the recipe. Once I pulled the test batch off the smoker, she tried it and immediate called her folks in Chicago. They were talking in Polish, and it seemed like every other word was "kielbasa" for the whole conversation. She turned around to me and said, "You're going to need to build a smokehouse, my peoples are going to want some of this!"