http://www.nexusmods.com/skyrim/mods/3325/?tab=2&navtag=http%3A%2F%2Fwww.nexusmods.com%2Fskyrim%2Fajax%2Fmodfiles%2F%3Fid%3D3325&pUp=1 use this Mod, it skips the whole sequence until you disable it, just load it with NMM and every time you select "New Game" it will put you at the exit to the caves and asks you to select if yuo went with Hadvar or Ralof, also putting all the necessary items in your inventory from the Helgen Keep sequence (potions, weapons, etc.)