These are the averages. About the lowest I can receive, and RS Gold always abscond, is 60k an hour. And then other hours I've got around 103k Exp an hour. Ivies are 75k exp/hr, and 80k is pushing it. 3-4 weeks is a safe estimation at your pace. If you're bored you can always try Stealing Creation for Hatchets which gives you double the ex. In regards to the firemaking issue The amount of wood burned for an hour of 1000. Therefore, it should require 100 hours or less.
I just got my fire cape in the morning, so I'll give you two tips. Beginning with equipment and inv 100 diamond (e) bolts for Jad. 1 range potion, you can only apply 2 doses prior jad or all four during jad. 10 brews. 15 . Super restorations. 1 Enchanted excalibur.
Bring 1k broads. You'll be using 500-700. Switch the helm to either Veracs or neitiznot. Legs can be prossy or verac. Boots to either rune or dragon. When it comes to strategies are concerned, trapping the 180's with the 360's or 45's is an important goal.
The other one has been killing the 90's. 360's and 45's should always be the last ones. Try to eliminate the 22's as quickly as possible, as they draw out prayer. Hardest waves are 53-60, and that's when the trio of 360/180/90 comes out. What you need to do is locate the 90 and then run behind it, kill it, and then run around the 360 or either dragon or anitaly rock, and then trap the 180 whilst killing the 360.
When you're at jad, you can brew/sup your way to full stats as well as an ranging pot, then turn on range pray. If he hits you it is your first task to find out which attack is that he's going to do next, and just brew/sup/range prayer switches. If it's the healers, you need to Buy OSRS Accounts be praying the eagle's eye or steel skin. Then you either take them out or kill them one at a time. This method is less difficult as far as time wise however, it is also more risky. Good luck.