I would not suggest doing that. Any disk image program worth its salt will allow you to view and extract files from images, which pretty much eliminates that as an excuse. Furthurmore, it requires you to do this voodoo with partitioning and file systems, which increases the possibility of an error, and consumes time and effort. Since disk images have metadata, they are less prone to errors and corruption.
If you just want a copy of your files, then don't beat around the bush. Just copy your files.