Also I think you may have misunderstood my point on compression. There is an option in winrar to split your archive into multiple smaller archives that way instead of Vorecracy-0.1-pc.zip at 2gb you could have Vorecracy-0.1-pc.zip, Vorecracy-0.1-pc.z01 Vorecracy-0.1-pc.z02 Vorecracy-0.1-pc.z03 all at 500mb. That way you can upload it to dropbox without issue. I could quite easily see this getting to 10+gb depending on how big you want to make the story but from the quality you have produced so far it would be well worth the download.
The option you want in winrar