First off, you totally suck for finding a fish used for that price. I had to give up and buy a new 5'9 fish and I was able to get it down to $280 new... However, I got a sweet deal on a broadcast 4'9 for $75 with a rope, but it was too short and not boyant enough for my newbie self.
I didn't like the accurate rope that came with my used board.
So I bought this body glove one. I really like the thickness and the knots.
This was the best price IIRC, it's who I ordered from.