I haven't exported it yet in full quality, but I'm looking at 1.3 to 1.5 gigs.
I also wonder just how many people would really want to download an obscure sound mix to mux in with their GOUT projects. If it's not many, I can just wetransfer it whenever someone wants it.
EDIT: If I transcode it in a loss-less format like FLAC, I think I could get it down even lower.