I, too, am interested in seeing the pictures of what you have, once you've finished taking them.
(I'm personally looking for "teenage"-sized (like a smidge smaller than G1, like say the height of that strawberry pony with the "glass" eyes) unicorns and pegs.)
Unfortunately, none of those see to be the kinds that are fast sellers, which is probably why the seller sneaked them into a lot like that. You have several "Lady Babies" (the ones that look like a baby SHS) I think there's at least one person here building an army of those. And I bet that Sunshine pony will find a home. (Yellow fellow with the orange yarn hair)
You asked if it would be worth cleaning any maybe rehairing. Cleaning would be polite but not necessary, and I definitely wouldn't re-hair them. It's a lot of effort for a pony that still won't be worth much, really it's something it'd be better to let the buyer decide.
Sorry you got a wormy seller.