You really shouldn't be using Optifine with MCPatcher at all, actually. MCPatcher hasn't been updated in over a year, but Optifine does much the same that MCPatcher did. You don't even need a separate assets folder, since it will read whatever you put in your MCPatcher folder.
For the sake of reducing clutter, I'd recommend creating a subfolder for these models, such as a 'random' folder within ~/models/block . If you choose to do that, defining the model will look like this:
Rollback Post to RevisionRollBack
"I'm an outsider by choice, but not truly.
It’s the unpleasantness of the system that keeps me out.
I’d rather be in, in a good system. That’s where my discontent comes from:
being forced to choose to stay outside.
My advice: Just keep movin’ straight ahead.
Every now and then you find yourself in a different place."