Welcome to the new Wizard Outboard Forum.
Here's some pictures I shamelessly stole from the web. Supposed to be correct decals for a WA3: For Decals try: Try Dan & Dixie Hamack 1-612-850-7026 or possibly Tom Theurwacther oldprops@yahoo.com This information from John's Old Mercury site.com
I asked Tom about them and he indicated that he had them but would need to verify. I am pretty sure they will be vinyl decals instead of water slide. Probably others as well.