I second Zipperstop. Never had a problem or issue with any order placed.
Another thought, if you are unable to find the size and length of zipper you need in time, maybe go to a thrift store and look for jackets with zippers. You may find one the right size and length you need, at a good price maybe, all you would have to do is remove from jacket. It isn't hard to do with a seam ripper and a bit of patience. Not as good as finding a new one, but a "last ditch" approach.

wow! thanks everyone :) I have some leads.

The LQS is out of the pattern now as well - will have it Wednesday. But I know the instructor has a pattern and has taught the class several times so she will cover me during class

Check with Small Town Stitches in Seymour, they are teaching that class as well.

I have started using ZipperIsland. Zipperstop took 3 months to send my order the last time I shopped with them!


https://www.etsy.com/shop/ZipperIsland

I found lots of #3 zippers on Amazon, many with Prime shipping. You may not find the color or length you want though...

Thanks everyone I am trying Wawak Sewing supplies.... lets hope they get here in time

Thanks Kathy for the tip on the Seymour store - I had already placed my order by time I saw your suggestion

For my duffle, I bought a 30" separating zipper, because that is what I could find. I just stitched over the zipper many times by hand, with a double threaded needle, at what would be the open end at the desired length. Still works great nine years later

Thank you.

I got my larger ones, like you would use for a duffle bag at an upholstery store. I made quilted zipper cases for my church's bells for the bell choir. They came in hard cases but were being a bit mauled. The covers remonded those using them to be careful and were colorful. The upholstery store had lots of choices too.

While I cannot help with a source for the correct zipper, I did find this information on the website thezipperlady.com:

Toothed: #3, #5, #8, #10, #15, #20. The number denotes approximately how wide the teeth are across when closed.