Price check please on G1 Baby Nightcap New In Package

[Starie]

Hi all!
I have a bit of a weird one (at least for me)
I have a G1 Baby Nightcap that I'm looking to sell but it's new in package in what looks like the mail order plastic packaging.
As far as I can tell Baby Nightcap only came new in box in the Slumber Party Gift Pack as set with 4 other ponies. I'm not sure if in that set the ponies came individual wrapped in plastic inside the box?

At any rate, I'm not sure what to price at because usually you can't find Baby Nightcap New In Package outside of the set and it's left me a bit stumped! Any thoughts or info would be really appreciated  Thanks in advance!

(Side note, somehow a little spec of green something got in the package so Nightcap has a little green smudge despite being NIP I don't know if that would affect value )

Imgur link since I don't recall how to upload images, sorry!
https://imgur.com/a/Y4VWItR