Suggestions:
For loot:
Given our levels I'd suggset the following:
1. Redwillow on hard. (lvl 7-8 chests)
2. Stormcleave on Normal (level 9 chests)
3. Giant caves in Threnal Ruins. Probably normal (lvl 10 chests)
4. Deleras (mix of 6 - 8 chests)
For 25% boost:
grey moon through to the end - we would likely hit lvl 10 chests by the end of it but itll be a tough old battle.
im not convinced we can do much of the other stuff at 10 if we want to capitalise rather than take it easy + readon is AFK for parts of tomorrow night.