Currently: Lighting maple RuneScape gold logs to get from 67 to around 85 firemaking, just to train something, does not mean I can't do anything else. Cash: Around 2.5m like I spent cash to purchase bandos torso and purchased 20k maple logs. All pursuit w/o getting over 1 Def, 50 Atk and 45 Prayer: Assuming you are 1 at the stats when you begin...
I highly suggest you do any prayer based quests continue. If you start prayer, you won't be that good until higher battle (such as 75 strength+). If you stay 1 prayer you can pk a lot earlier and help avoid that"all work and no play" problem which many pures do. This helps keep most people inspired. You could even stop at 50 assault for granite mauling first. Stay legit man. 90 percent of pures (that is a made up statistic, but it's likely unfortunately accurate) nowadays are botted, combat brace sporting nubs.
In my excuse, I'm are assuming that you are getting 95 prayer from about 75ish. You are able to add in your own numbers and follow what I did to see if its different. So a 35m difference in the price and also a 15 hour time difference. So in the event that you value your own time at 2.3m+/hr it's worth it to use frost dragon bones. However, this is assuming you've got the cash already, that you dont, but if you would like to accumulate the frost bones to make this possible you can.
Now for the amassing the bones. Everything is dependent on how much you make/hr. If you make 2m/hr then it's 90 hours to your trickle bones and 72.5 hours to your dragon bones. And you must answer yourself if 2.75 hours is worth 35m. Therefore it's better in your situation to use dragon bones, by 2.75 hours difference and 35m. Dragon bones are about the exact same period as frost bones, but you conserve 35m.
I don't think so. For instance, if you press Esc to close your bank it would have to use coordinates to find the X to close the bank, which makes it automated and illegal. Also pressing F10 to switch to bank and gear, that is not 1:1 input to output. Moving from gear to bank is a number of functions and can also be impossible to do with 1 click unless you are hacking on the game to allow it to do that. If this is not true then develop on what you want it to do, then I did not really know what cheap RS gold you were asking but I gave my own effort.