I save the raw files (usually 24/48) and the edited file(s) (after EQ, normalization, fades, etc.). Then, I resample and dither to 16/44.1, track and flac. I throwaway the resampled/dithered file and the tracked wav files. I also save the CDWave track file and flac fingerprints. So, in the end, I have the raw and edited files and tracked flacs.
To transfer, try putting the wav files in a folder and zip it, then transfer via WeTransfer. Break it into two folders if necessary. This is free and easy. Also, you can install a flac converter in Foobar which is simple to use. Transferring flacs is much easier...