The suggestion was to add global effects - those that run throughout the project - after Sequence 1 was dropped into a blank Sequence 2 - not after exporting. Hopefully, that would help lessen the load. Then again it might not. Thereafter, Sequence two - a composite - would be exported in segments to be later assembled, per earlier instructions. Another load lightener might be to purge unused bin files, so they aren't included in the portable package.
About the only suggestion remaining is to test an export of the final using AVI format, 2K. Won't hurt. Might fail. You can run it while you sleep._
As far as final efforts for you here, uploading the portable project folder is most helpful, after adding all effects. Right-click on it and click PROPERTIES to see the file size. That size, and likely more for overhead, will be the free space needed on the server. If the portable project folder is too big, perhaps you can zip and upload the files that the folder contains in chunks that the server can handle - one at a time - to be verified as received in full here.
There is no 64-bit beta. Expect 2K, 4K to be handled better when the 64-bit comes to fruition. While recent versions are much improved, the influx of those files imposes heavy demands.