Aww, you're too sweet! I'm a fairly new knitter, having crocheted since I was 9 years old (taught by my grandma

), so that is a huge compliment...thank you.
Here's the info I have for that particular scarf:
Needle: US 8 / 5.0 mm
Yarn: Berroco Pure Merino
How much? 4 skeins = 368.0 yards (336.5m)
Berroco Merino is my favorite yarn to work with, but I found it's not so great with certain patterns. It's quite a stretchy yarn, which works well with scarves since I like to block them to be extra long. I tried it on a hat pattern and it turned out huge. But I guess you could always just go down a couple needle sizes or something to make it work.