Some Dutch sellers don't per se know what they have, so sometimes I can find pretty good deals! I also know however that sometimes you're just deep in the searching rabbithole, so things might pass by - and I genuinely enjoy looking around for a good deal! There's also surprising amounts of ponies on Etsy, of all places.
Blueberry Baskets:
This one is for sure over budget, but she's also by far the bluest I've spotted (
link), and then there's these two, currently discounted and looking pretty alright for $40 (
link1 and
link2)? I can't say what US shipping quote would be like though.
Paradise:
Shipping from Canada, but at $22 and still fully flocked it seems and with outfit! A tad yellow as you say yourself, but that might be fixable with a little time in the sun (
link) In fact I'm not kidding about Etsy, have a look:
link
Locket:
She's a tough one, but I found two ebay listings for 20 - 30$ in the US! (
link1 and
link2)
Maybe they're not all to your liking or in the condition you want, but still I so so hope you find your dream ponies here! It was fun trying to look for 'em