... and I say this because the fonts are all wrong. The title page on a real original script looks nothing like that. And the text of that eBay script is in the computer font "Courier", where a real script has all the imperfections of a typewriter used in the 1960s.
For example, here is a page from a real original script for FLIGHT PATH:
I must say, I'm inclined to agree with you. The third hole (centre) seems to confirm that this is a fake. The only bit that makes me wonder, is that the 'suspect' script does indeed have the scene numbers and descriptions underlined, whereas your transcription doesn't. But this doesn't prove that it's real, just that the 'faker' has also read your intro!
The script didn't sell, no surprises there!, but the guy has relisted it and knocked off £45. Knocked off probably being the best description all round when it comes to this! You've got until 23.55 on 19th August to waste £300.