why not use a round 1x1 and event it to lift you up, then duplicate it to the length you want?
or did you mean like a brick that looks like a rope? because there are bricks that would look VERY VERY similar to a rope, except not twisty and braided, i think they can be found on the RTB forums, i beleive they are called pole bricks.
just a few suggestions.
if i am not getting the right idea, please tell me so.