Yepp it seems that the good parts is missing, I would never buy it at the state it is for that kind of money, since the pictures are so low quality and the facts that he have had it for 8 years without trying to hook it up to a monitor to see if it works.
without better pictures on the chips etc and a test to hook it up to a monitor and a report/pic on what happens would make it more of a good buy, tho someone that for sure knows what is missing and/or have the missing part might buy it and if we are lucky we will see him/her who buys it posting here