Not only do most poultry keepers mistake their EEs for AMs (thus posting pictures under "Ameraucana"), but certain key words you looked up will pull up completely unrelated photos simply because a website includes it.

Frazz shared a wonderful link for you to reference.
Here are a couple photos of a Blue Wheaten hen and Silver roo:
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If you examine and compare your beauties with these guys, you'll see there are some subtle differences, mainly in coloration. Gertrude is more of a fiery orange/smokey blue with a dark head, while BW AMs are delicate strawberry blonde with a touch of lavender in the tail. Likewise, it appears Gregory's saddle/hackles are light beige, plus bits of red in places. Silvers are exclusively black and white. I must agree your man is
much handsomer....

$8....that's somewhere between both prices.
Just because a bird shares some of the qualities with a breed doesn't automatically classify them as that breed.

A couple of my EEs lay the most beautiful, sky-blue eggs out there, and I do believe one sports slate legs. Also, there isn't technically a given standard for EEs.
Chickens are fascinating creatures, indeed!

It's a joy learning more about them each day. I pretty much covered all the points that led me to say Easter Egger, I do believe.

Although, they way they looked as chicks could be another indicator. It can be very hard to change something that's become a habit, especially after so long a period.
~Alex