Actually I'm going to use string trimmer line (.080 on a roll) tough stuffGive it some thought,,,, "string" sounds light,,, and you want some reliable pulling power. When I fished a replacement clutch hydraulic line through,,, I used some 14 gauge wire,,, carefully taped at the joint, to avoid snags. You will likely get through okay,, but plan for the worst,,, cheers,,, CAt'