Forgive me, but what do you mean loathe to messing with iTunes and backups?
There's no rocket science involved – hell you can even do a manual backup, then reset the iPad from within General Settings, and then Restore from the backup.
It's all automated, more or less, so there's next to sod all to actually do!
If it's just eBay that's the problem, then delete it and re-download from the App Store.