I just got my order from diygearsupply.com, and I'm very pleased. It was a great price, fast shipping, seems to be very high quality, and they actually gave me a few extra inches of the zipper I ordered. I haven't measured the full length of the mesh yet, but it's slightly wider than the advertised 54".

I'll be ordering from them again if/when I have the chance.

grin
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The journey is more important than the destination.