Oil cooler......really?
I have a couple or HAD a couple of CB750 SuperSport's (now I'm down to one) and those bikes, being air cooled, really didn't need an oil cooler, but I put one on the Cafe'd 750 just because it was "cool" (no pun intended). It makes a real difference during those hot summer stop-and-go drives through traffic. I can see how an oil cooler on an air cooled bike would be an advantage, but on a 'Wing? It being water cooled, the temperature is much more stable and less prone to overheating the oil as a result. Unless you're planning on travelling through the mountains pulling a trailer at 75 MPH, I can't see why you would need one.
Steve F