Bring LOTS of P pots, just stick on melee prayer and u should make it through alright, remember after u kill the trolls u can go back to a bank and restock on anything necessary for the boss.
I'd say try world 1 buying yews for as low as u can, then go to world 2 seers or post on forums selling for as much as u can. When i used to merchant i did that and made alot of cash an hour... It depends on how much u commit to it though.
From barrows i got a veracs brassy on my second run...sadly at the time i didnt know how to take screenies. Uhh no d drops up to this point, best non-barrows and t trail drop is half keys and rune scimis.