Here's the first part I pulled off. This part took the most time as I had to consider how to deal with the rot to the structural parts of the trailer (this turned out to be the worst spot). The most challenging part was replacing the longitudinal horizontal board on which the upright members rest. While there was little rust to the steel brackets I had used to fasten it to the transverse horizontal members underneath (which were, themselves, in pretty good shape), once I pried out the nails I had used to attach the longitudinal board, the verticals wanted to fall down, and it was somewhat challenging to simultaneously pry them back up and insert a replacemtnt board. This was especially true of the vertical 4x4 that holds up the kitchen counter and shelving, as it supported extra weight and only went half-way up the wall. The 2x4's that went all the way up were supported somewhat by their neighbors via the (still intact) longitudinal board that ran across the top of the wall. I took this photo just after having finished getting that longitudinal replacement piece in.