For what you are asking could you not just right click your coins to get an exact count of how much money you have? Would log on to help you but I am at work atm.
For a second there I thought you were using profane language. OT: You could try to obtain the hides yourself and have the armor crafted. Other than that, just wait out the Grand Exchange.
So you're saying you cant do the Lumbridge Diary? OT: I'll try to do the Relekka one when I get home tonight. Always looking for a reason to go to Miths. ^.^
To be honest I think training controlled is slower because if you get your attack up you will hit higher more often therefore increasing your xp per hour.
The amount of tokens that you will use vary. as long as you have the highest defender drop that you have received with you, you will be able to get the next highest one. Some people have used only 1000 tokens to get to rune while others have use 3000+. Its all up to luck.
You wear the facemask. I'm pretty sure that dusties use melee attacks, be sure to take some food as well as b2p tabs. Also I want to make sure you have the slayer level required which is 65. If not you need to look for something besides dusties.
Did you not encounter these when you did Regicide? Its the same place and in turn you should be using the same strategy and tactics that you used during Regicide
I wholeheartedly agree with UW. Range is way better than melee. Even if you are killing in a team you get slayer xperience so it may be better if you just scratch soloing and just join a team.