Nine years have passed since the Original Post. I don't know if anybody is interested in playing this anymore. How much work is it worth?

BUT --

The Limelighters' version is on YouTube, and it's in the key of D. At least that's where it starts. The first few chords are

D Western
F#m wind, when
Bm wilt thou
F#m blow?

For an exciting, plunging, sound, you can go back to D on "blow."

That ought to get people started. If you are not familiar with F#m, it's a good chord to learn, adding richness to songs in the good old key of D.
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It seems to me the original said "Western wind, HOW wilt thou blow."