I was planning on zipping the save. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" /> My 24 MB folder at the start of the imp village compresses down to 2.3 MB. Even when the save size doubles after visiting the battlefields, it should still be small enough to email for most ISP accounts (free web mail usually has a 1 MB attachment limit).
I have at least some idea what most of the files do (in some cases maybe only part of their function). A couple people have tried getting the teleporter stones back in act 4 or 5 without success, and in act 3 with limited success.
Mixing files from different saves might cause problems (missing quest items, cut scenes not being triggered, etc), though it depends on the situation. If file size was the only reason to try that, it would be better split the zip into smaller sections, or upload the save to a webspace for download, rather than email.