Hello oakman... There is a bonsai in there..but it is going to be very hard on the tree to create it. You will need to be patient and work in steps, since the amount of work that might need to be done can/may compromise the tree's health. Sometimes it is better to just leave the tree were it was found. Not to say, that we do not ritually do heavy work on trees, but when there is this much to cut off. It is risky. Also, other things to consider are how much you paid for this tree and how attached to the tree are you.
Well, with all that being said. I think I have a direction for this tree. I believe a semi cascade would suit this tree nicely. Might be the only real possibility for it. Here is what I would follow if it were my tree. The first thing would be to tilt the tree towards the right, like in my virts. Tilting it towards the right and towars the ground will make it look like it is growing to the side and slightly down. Then, almost all of the branches to the left, have to be removed or jinned. This is where the health of the tree might be compromised. In which case, you could jin a couple of the branches, maybe cut off one of the other ones so it is not in the way. I would do this work in stages. Perhaps jin one branch and cut off one or 2 of the other ones this season. Then next season or the season after, you can reduce further. Also, repotting into good soil and on the new angle will need to be done at some point. However, everything cannot be done at once. If the tree does need to be repotted, you can do that first and make some minor cuts. If the soil is ok, then pruning will be the first priority.
These are virts showing the work that could be done to achieve a semi cascade. The blue is the image of the tree, the red would be cut off. The white parts would be jinned. As far as wiring, basically you are leaving 2 sections to work with, the apex or top and the main body of the tree. You can wire the branches out in both sections so they create small, seperate foliage/pads like in my virt.
I hope this was helpful.