If you have that much I would go with the Ktek zeppelin. I got one secondhand and it just rocks. I doubt it will do much in a hurricane but under "normal" outdoor circumstances I have no wind noise at all.
first one - its an actual zeppelin and will give better isolation from the wind. More dead air space. The second will work well, but the first work even better. If I recall trew has the first one for something like $308
only reason i ask is because it looks similar, but not the same on the photos. This one here looks thinner and long. Do both models have those end caps of foam? Are they the same product because the furs on both of them look quite different.
here i am - yeah thats the same one. Looks like the trew pic is the earlier design - might want to call to see which they are selling. The later design is a bit more sturdy and easier to use - I've got the old style one and just havent gotten around to calling them to upgrade the parts. They come in 3 lengths so thats all your seeing dimensionally. Fur looks the same to me - combed differently perhaps? KTek only makes one full zep in three sizes. I'd call trew and see if they can help you out.