Question about cannonball smithing

Hey guys i'm currently botting yews and 80k gp/hr just isnt cutting it. I was wondering if smithing cannonballs is still profitable? If so which quests would i have to do and should i buy supplies to make steel bars or just buy steel bars? Also are there any bots that make cannonballs automaticlly? (spelling)

 

if u want an easy one. do pure ess. a little better than yews.

 

im making about 200k an hour mining at living rock caverns.
But you need to get to 77 mining first for that, its not that hard to. You can just m1d1 iron all the way there. only takes a day or 2

 

im not sure how much making cannonballs makes now but if you want to get varrock armor 1 atleast (for furnace at edge bank)