I struggled a bit with the killing of the trolls, purely because I forgot to bring another set of decent armour with me, so I was stuck with the yak thing. Also, the troll king is a piece of cake. Just make sure you use protect from range, and eat whenever his barrages hit you.
My advice to you: Run! Run while you still can! But serioustly, i'm in the same situation. I just have no idea what to do anymore. Whenever I try to find something to do, I end up logging off after 10 minutes or so. You know, this could be a good time to start a pure/skiller.
If they release full full dragon armour, they might as well release dragon ores, dragon pickaxes, dragon boots, dragon hammers, make skills go beyond 99 to allow the dragon bars to be smithed. but first, you must use your level 110 smithing to smith a dragon anvil. no, I don't think it will ever happen.
Saradomin (white) Zamorak (red) Guthix (green) Gold Trimmed (gold) Trimmed (light blue) Not sure about the exact price, but I think I put them in order, starting with the most expensive.