I did all of sorrow's furance with a searing flames ele (mule account

) and a bunch of crummy heroes (no elite on my monks etc)...VERY do-able.
Fissure is also do-able with heroes (my hubby and I did it with 6 heroes before the 7 hero update--only really need to worry about pulling during a few of the quests).
havent tried the others, but my hero set-ups are sooo bad I wont even post them (hubby and I have done half of doa with our heroes and horrible builds--just havent had the time to finish it).
so yeah, most of those are very do-able with heroes, under world may require a bit of planning but you should be able to finish it as well (might take a bit of time--no speed clear records here).