Two things.
First, I have lost my source of radiators, so I can't make that one like I used to make.
Second, in many applications of the Bullet, the oil cooler is not necessary.
There could be some circumstances that it would be useful, like in very hot climates, racing, etc.
But for many street applications, we have found it to be not as necessary as we originally thought it would be.
I have access to one of my antique style radiators which is owned by a Fireball owner, which he didn't install, and he's looking to sell it.
If interested, just send me a message.