I started off considering using my coaster brake. After a few rids I nix it and went with pads. I built a bike for a friend and used coaster brakes, he liked then. To each his own, you can start out with them and go from there.
I don't like the idea of cutting the dust cover.
YouTube - ‪Bearing cap mod‬‏
keep in mind he omitted the rag joint. I think for a shorter vid.