I have not called this number in several years, but my handwritten note on our existing Boundary Map lists the Phone Number as 801-240-5370. Ours was printed in 2009. You will need your unit number and they mail it directly to the Bishop. Printed on the map is another number, 801-240-3500, but I think this one is for the Stake to report boundary changes.
In my experience, downloading the PDF does not give you any detail when you try to blow it up to large format (22" x 34" or larger). Only the major streets were shown and no neighborhood streets (but that was back in 2009 which is why I ordered one instead of printing my own). Our current boundary map is on "E" size paper which is 34" x 44." If you can download it in a large format with details, you might find an Architect or Engineer in your Stake who owns a plotter and is willing to print it for you. I do know that our local office supplies store has plotter capability if you take the file in on a thumb drive, but I have not checked their pricing.