Ask abount can farm how many resources per day is depand on your townhall lv, research lv on barbarian, archer, giant and wall breaker.
U can ask for stop for 1-2 hours for war if need
TH8 with full lv of barbarian, archer, giant and wall breaker can get around 14-15m for gold+elixir& 25000-30000 oil. no speed up.
TH9 get less 30% resources of TH8