The fence automatically gets fixed once you finish Country Road.
Oh, whoops, I totally missed that.
I'm not quite sure what you are asking for. Do you mean how to find it? IIRC, if you keep walking around in Farmstead, you eventually run into the broken fence.
Do you mean how to have a glory hole scene with Ste? In that case your likes with him need to be high enough, then you mention the broken fence to him during the night. If the fence is already fixed, you can't do this scene.
can't fully remember some of them but you can get planks from either Logan's shop or your house if you have an axe and the tools from Bernard's shop. also I believe I went with Roland since I'm not certain how to get Logan or Lenny to help if you wanna try him. I believe you need to go to Bareshade at night and an option should show up about him. I am 90% sure I did before Bareshade had that new area so you might just need to walk around at night instead of an option showing up too.