Paul, it looks af if the previous owner planned on pic 4 as the front, and was growing the top out to be wired down. The top of the foliage would be where the V of the jins meet. The jobs are too heavy, need to be carved down. Could be a good use for all that wire you're getting from Gremel!
Other possibility is to graft Kishu down low and make a shohin out of it. I'm thinking pic 1, turned more to the left as the front.