I've kept smaller bachelor pads before for short terms (longest was 3 or 4 months) with cull males. But they also were raised together.
Main difficulty now is that Foghorn doesn't exactly like most males (especially poor Coffee, he hated him for some reason before I moved them all and it still took a few days before he seemed to accept that Coffee was there to stay).
I think the main reason he doesn't target now is that I have 8 cochin clones and 4 araucana clones also in the pen for processing later, so most birds look pretty much the same.
If he continues, I may have to make a choice on if I keep him or process him, but for now I'm going to just hope that the lack of girls is helping