Barryga

When I restored my 74, (454) I may have been stupid as when I built the engine and converted to rollers and up graded everything from the alternator, to a better air conditioner compressor, then the factory.
But like an idiot, I did not convert to a serpentine belt system.

Now I do BUT I don't want a bunch of chrome and I really don't want to buy new compressor , alternator, PS or water pump as all of it is new.

Is there such a thing as a black pulley kit, that will just bolt on to my air where I can keep the old components? Or am I just screwed?

Any ideas?