Yes, you can use "Simple Editor for Wizardry 8"
Filename w8edit.zip
Size 93.6KB
URL
http://www.wizardryrealms.com/wiz8/cheats.shtml
Backup your SAV file and CHR files first(when you export
characters I don't think it will overwrite them, just adds
a 1 to the end). But be safe.
Unzip, run editor, load your SAV file. Then export all
of your characters. Then start a new game and add your
old characters. Your gold does not follow to new game.