If u use such trellis type make sure to fix the tops of the wood polls to the wall, that way it will be sturdier. If its all around concrete u can even skip the buckets filled with concrete and just have the wood pole sit right an the ground, just ajust the angles on both sides so it is nice and fits the angles of the surfaces. I would suggest having a wood pole around every meter of distance the area u are considering has. Then u just make small holes with the wood driller, big just enough for the wire , that are spaces eavenly on the length of the poles , just do not stretch the wires too much so they dont curve in the poles.
For the pots I have one purple pf planted in a big cutted out drum . If planting in the ground is not an option, u should use a rather big pot with an airy and porous substrate.
My telephone does not let me to upload a pic of my plant at the moment, will try later....