Here are my stats:

 

 

 

 

 

 

 

Att: 60

 

 

 

Str: 58

 

 

 

Def: 57 (soon 58)

 

 

 

Prayer: 43

 

 

 

Thieving: 48 (I'll make it 50 before I start)

 

 

 

Agility: 48

 

 

 

 

 

 

 

Can I do Underground Pass with these levels if I bring my best armour and lots of food?

if your 65-70+ cb and have 50 theiving and agility i recomend i personly feel out of all quests iv done its hardest and i have 203 qp with 81 cb

You can do it, but you might want to take a little bit more agility, just so your brains won't take damage.

My brother did it with like 43 agility...

 

 

 

 

 

 

 

But he had higher combat stats... You should make it if you bring sharks or pineapple pizzas though ;)

So, if I train Thief and Agility to 50 and get myself a lot of Swordfish (best I can fish) then I might do it?

 

 

 

 

 

 

 

My combat is 72 and my hitpoints are 58, BTW.

Yes, you might, but swordfish might be a little tight.

 

 

 

EDIT : Oh and take a longbow & arrows and telegrab runes with you to the final chamber where iban's lair is, saves you a lot of jumping when you have to kill the demons.

well since you have 43 prayer just get atk def and str 60 if they arnt already then bye sharks and take necessary items (with 50 agility and thieving of course)

If I do banktrips...maybe it is possible with 75 Swordies?