After seeing a request on the Nexus forums for a delay in the main quest, I decided to clean up and release my personal quest pacing mod.

http://www.nexusmods.com/skyrim/mods/62894 introduces pauses in the otherwise hectic pace of the main quest and alters a few other plot points along the way.

The actual time delays and whether the Season Unending negotiations are skipped can be configured with the MCM or the console.

In the order they are encountered the changes are:

• Breezehome is available for purchase immediately after giving Farengar the tablet from Bleak Falls Barrow and Ireleth does immediately not appear to introduce the first dragon sighting.
• One week after giving Farengar the tablet the journal entry "I wonder if Farengar has made any progress on his Dragon research." will appear. Ireleth's scene about the first dragon sighting will start the next time the player visits Farengar.
  
• The Horn of Jurgen Windcaller can be successfully retrieved and returned to the Greybeards without interference from Delphine.
• Two weeks after returning the Horn to the Greybeards and being formally recognized as dragonborn a courier will deliver a message from Delphine. "Dragonborn -- I need to speak to you. Urgently. -- Delphine of the Sleeping Giant Inn in Riverwood"
• Some of the "cloak and dagger" dialogue is stripped from the Delphine introduction, but she still will want to see the Dragonborn in action for herself.
  
• The silly link to the civil war quest (which triggers when you don't have an interest in the civil war as a way to force you into it) has been disabled. Balgruuf will still think it's crazy to trap a dragon, but since the entire process takes only a few minutes and presents no real opportunity for either side in the civil war to stage an attack this pointless and tedious activity is disabled.

These changes were chosen because it required the least amount of dialog editing and greatest compatibility with other mods. Alternate Start and other quest delaying mods edit MQ101 and MQ102 so my first change is in MQ103.

It's on the Nexus at: http://www.nexusmods.com/skyrim/mods/62894.