Original purchase prices of $0 for the '78 Centurion and $15 for the '70 Raleigh Grand Prix. Both gas pipe frames but light and sturdy enough for commuting 5 days a week. After paint, steel wool, component tweaks, cables, bar tape, brake hoods, frame pump, lights, fenders. Maybe $100-150 each, but I would counsel not including most of that stuff in the final cost. More durable, universal accessories, like the fenders and racks can be moved from bike to bike.