Nobody's going to send you stock firmware. Go to Samfirmware, download it yourself & flash it with Odin. If you don't know how, search. If you can't be bothered searching, leave your phone as it is.
If it's important enough to cause you grief if it's lost, back it up. No excuses
Trolling for thanks is lame
Does Samsung's auto-brightness implementation crap drive you to self-harm ? A solution !
Failure to search is the leading cause of male impotence on XDA
If you don't know how to recover if things go wrong, what are you doing flashing custom roms ?