Single Speed Conversion for the XC bike

I have a great old ORYX XC race bike that has seen better days and am pondering converting to a SS. It is on long term loan to me and am thinking that if this bike already weighs around 22 pounds it will likely hit the scales under 20 if I pull the drivetrain. Light and sexy. I might ask Luke if he can repaint her for me when he gets his done. Maybe a nice chocolate brown or cream with acouple coats of clearcoat. I'll post a pic ASAP of the bike and plans for the overhaul. It's a sweet old rig that could do with a makeover.