Topic: Surprise at Dinosaur Peak manual value?

Sooo.... I got quite the shock today.

I´m selling my retro collection and are trying to figure out what the different items are worth. To my surprise (no pun intended) I found the manual for the NES game Flintstones: The Surprise at Dinosaur Peak. I don´t have the game or the box, just the manual. I can´t seem to figure out what it is worth, but has seen one sold on ebay for 250 euros, which is also PAL B, like mine. However that one, judging from the pictures was not in good condition with several of the pages torn. The one I just found in my collection (which hasn´t seen the light of day in at least 20 years) is actually in perfect condition. Luckily it was placed cozy in between several other NES manuals.

The question is... what is it worth? Maybe the community can help me. Would be greatly appreciated.

Probably a lot.
You can't really expect people to just know the value of such rare things.
It all depends on how desperate some collector is, and when and if they'd want to show up for such a purchasing opportunity.