Hi, I have several S-100 buffered prototyping board PCBs available.? They are $20 each plus $3 shipping in the US and $6 elsewhere. Technical information available here http://s100computers.com/My%20System%20Pages/Prototype%20Board/Prototype%20… http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=S-100%20bu… Please contact me if interested.? Thanks! Andrew Lynch