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It's doable...You'd have to do some finessing, of course. The button band is knit on a finer yarn. So you knit a button band separately...Perhaps doing steeked buttonholes later. The collar looks fairly simple. I'll bet MathewGnagy or myself could write something up that would create something similar.

Might be fun to try. Let me know if you have no joy in finding a suitable pattern.

I like the collar, but I think the model kind of "makes the sweater" myself.

I have to agree with the yarn size difference. But there is also a technique issue. This is a machine knit band/collar and there are some things that can be done by machine that cannot be done by hand, and I think this is one of those situations. In fact, there are things that industrial knitting machines can do that a home knitting machine can't. In looking at it, the band is full needle rib, and the collar body is 2x2 or 3x3. Because there is only 1/2 a needle space* between FNR there is very little stretch, which makes it great for borders and bands. Maybe a good alternative would be a twisted rib with all sts twisted? Then do the boy in a regular 2x2 rib.

Oh, and if I can figure out a way for us to knit something similar I expect that everyone help me find the model, and I will not share!

No, but by inspection...
It looks like the collar and button band are finer yarn than the body of the sweater,
perhaps the body was knit with doubled yarn. I'd also guess that the band and
collar were knit together as a unit but separately from the body of the sweater and
then sewn on to the body afterwards.

The top edge of the collar looks like a kitchener (tubular) bind-off, or perhaps it was
knit top-down using a tubular cast-on. The button band looks like k1p1 rib 9 times +
selvege edge, and the internal part of the collar looks like it's k3p3 or k2p2 or maybe
k3p2 ... a couple of test swatches should solve that.

For the selvege edge I think I'd use the German selvege ... slip the last stitch of the
row and knit the first stitch of every row.