Mate,
I can understand feeling attacked by what is being said here, however the main problem is that this game is simply not worth anywhere near what you are asking. Knowing what we know about the origins of the game also raises several red flags for us. Despite it being in the scrapyard for only a short while, the game shows all the signs of dangerous storage conditions before arriving there. Most likely this would be a parts game only, not a contender for a resto. Possibly somebody might want to try to save it, but it would cost much more than the game is worth. The boards are nearly ruined (possibly actually ruined), the backglass is missing, and it appears to have water and rodent damage. Depending on what you paid, there is probably room for you to profit here and put toward your schooling, which I fully support, but it most likely be significantly less than what you were expecting. If somebody actually offered you 1100GBP ($1450 USD) I would take that money and RUN

I think the vitriol you are experiencing mainly stems from the non disclosure of the conditions in which it came from, which is expected. That is somewhat of a major fuex pas in our community. We are generally open with what a machine is, and do not try to pass it off as anything else. IMO, this can be forgiven somewhat due to your inexperience, but you must understand why this is frowned upon now that its (hopefully) been explained to you.

Edit- I will give you credit though. Most people who come across something like this, post 1 or two horrible pictures and say the game is in nice shape and then ask way too much. At least you posted some decent pictures and didn't try to claim it was in great shape.