I finallly earned 7500 Favor today. The thing that put me over the top was soloing Dr. Rushmore's - Behind the Door. I 6-starred it to take me to 7501 Favor and happily picked up a +8 CON Tome from Nyx.

Getting max raid Favor was the biggest difficulty. Finding and getting into certain LE/R1 raids (like VOD, RTSO, etc.) took a long time and a lot of watching the LFMs. There are still 4 raids where I haven't maxxed out Favor (THTH, Hunt, Skeles, and MA). Those 4 raids are the only listings in the Adventure Compendium that I don't have at Elite or Epic Elite.

I still hope to chip away at the last 99 Favor that I'm missing (50 from those 4 Raids and 49 from Challenges that I haven't yet 6-starred).

Btw, this was done on Sarlona with a first life Alt named "Inqie". Thanks to everyone that helped me these last three weeks when Favor was the hardest to get!