Thanks for your patience, and thanks to commenter yo go re for reminding me of the Google Docs option!
If you didn't see it earlier, here's a little back story on what temporarily shut down the download:
Today I received this message from Dropbox, which is where the main map download is stored:
This email is an automated notification from Dropbox that your Public links have been temporarily suspended for generating excessive traffic. Your Dropbox will continue to function normally with the exception of Public links.
This suspension is temporary (3 days for the first time).
I have contacted Dropbox support to figure out a solution for this and will move to fix it ASAP. In the meantime, the map download likely will be disabled for sometime. Sorry for the inconvenience. I'm really hoping it's just a temporary issue. In the meantime, if anyone has any other suggestions about where I might want to store the downloadable map so that it is easily and freely accessible, please let me know.