After a relative silence on my side, Boongoo and me did a new high score!!
668 moves, 9 vaults (still 3.5 hours) 
The video is at Gems Of War Treasure hunt 668 moves - YouTube
Some of the game story will be told as usual at Gems of War General Discussions :: Steam Community , although I predict it won’t be a long one, as we didn’t argue much 
Finish line Screenshot :
