Can I Barrows?

72 atk
74 str, 71 def
57 pray
62 range
63 mage

 

Yeah but you might not be able to do as many trips as a higher level so profit/hour won't be that good.

 

It's possible but you should gain some more lvls so that you can make some good loot, as BeeVer stated.

 

Nope lol try getting 94mage 85+str 75+att 70-75+def

 

Yes, easily. However I doubt you'd make it more than 2-3 trips before you need to bank.