For any future projects, perhaps this will help.
What I found over the years, is that it is INFINITELY easier to just pick up a hosted web site account from somewhere like Go Daddy, set up a few FTP accounts, and use something like FileZilla (freeware file transfer program) to upload and download entire project folders at will.
If you want more detailed steps to the above process, just post back.
The above would require a web site name to be purchased (I think they are at or less than $10 a year), and then I pay something like $6.99 a month for unlimited transfer and 250 GB of storage. Since I remove folders and files after finishing the transfer process, I never keep any large amounts of data on the server, so I never hit any limits.
This way, I have ZERO worries about how big things get, and all of that, and I can send all of the uncompressed audio folders with broadcast wave files that I want.
I work with musicians from all over the planet, and this works well for all of us to share back and forth.
Bob Bone