Serpentine Belt Mod Help

[rms8]

I have a 1976 CobraII with a 550hp NA 347. I have the front end off an early 90's mustang (alt, A\C comp, pwr steering pump). I have removed the A\C comp and pwr steering (installed a man rack) this winter. So all I have is the alternator. Is there a kit, or set up that allows one to run a serpentine belt on an application with just an alternator? I have the rev flow water pump and underdrive pulleys.

Thanks for any help/advice in advance.