Can't help you with prices, but the G1 ponies are as follows:
Spoiler 6 - The Euro Playschool Baby ponies. (L to R) : Baby Alphabet, B Pictures, B Countalot, B Schoolbag.
Spoiler 20 onwards, (G1s) pic one - Pretty Beat, Magic Hat, Sunbeam, Pony Bride, Birthflower Holly and Retro Cotton Candy.
Pic two - Birthflower Holly, Lickety Split, Sundance, Baby Frosting, So Soft Bouncy, Retro Snuzzle, Retro Cotton Candy, Beddy Bye Eye Lofty
Pic Three - Retro Blossom, Surprise, Pretty Beat, Sundance, Baby Ember (lavender)