The only time when it is expensive if you don't have the construction levels is when you go for the week's collection of all jadinkos hunted. Because then you have to cycle through all the different building options. If you are just interested in farming pots you can catch common jadinkos. A vine blossom of any kind is needed. Catch plenty for ugune seeds And then you need marble vines from Igneous jadinkos. You need 74 hunter (71 with hunter pot). A thermal vent is 59K. That's not that much. You can just leave it in place. Only pay once.
I would think you are better off putting whip on controlled, do slayer and get your combat levels evenly, while at the same time gathering charms, clues, loot, and slayer exp. But that is just me.
This thread has been informative though. I had 100M in the bank at the beginning of this thread. Not a lot of money for Chessy, but for me it is. I then considered what is important. I subsequently bought 4700 frost dragon bones to get my prayer up and finally get 138 combat level. And in order to clean out my bank. A skill can always be recovered. GP and rares cannot. Thank you Chessy. ps. I still blame you for merch'ing though.
I get less kills and yak cannot keep up. Someone else gets more kills and yak can bank all ashes. That's weird. Did you use summoning potions to refresh summoning spec?
I seem to be doing only average slayer tasks: dust devils -> also 30k xp/hr. Normal outfit + iron titan in chaos tunnels. At least they drop crimsons and gems.