I got 99 ranged via slayer and some avainsees.
Avainsees is your best bet, making a lot of money in the process. Slayer is also good, just bring tank gear with mithril arrows/bolts.
Otherwise, look at
this, but at Method 3.
Just get 100EP, 26k trick, earn a mill or two, and repeat.
But instead of using that gear, bring tank gear with some steel arrows. Don't worry people don't come here, and when they do, the ice warriors will PJ them so they can't kill ya.
Or go do green dragons and spend the cash on chins.
If you melee the drags, the total range xp you get in an hour is 30k (accounting in the time you spent at drags and then time spent chinning).
Which is still better than shooting arrows at things.