I'm going to bump this up because I have a similar issue. I, however, backed up the original apps before wiping them out. I have gone through the update process numerous times trying to restore them from Tit. Backup, and I am stuck with the Chaton app. I think I still have the backups for AllShare, apps and other OEM Samsung/Sprint includes, but, currently, I am stuck with Chaton_Market.apk even though I replaced the app. I am getting an "unexpected contents" error when running the update.
Obviously I am rooted and not flashed to custom rom. I am trying to keep this phone as close to stock for the time being. Any help for the two of us?
Flawed: Are you using Titanium Backup? If so, let me know what apps you need and I will see if I have the backups for them, or can make a backup of my stock ones and put them up on DB or Google Drive for you.