Since this setup is so primitive, it is important that the ropes are attached properly and in perfect shape. A prospective buyer is well advised to examine the centerboard controls thoroughly. You certainly would not want to have one of the knots in the centerboard blade become undone whilst at sea. Furthermore, if you get the two control ropes confused, you might be lowering the board rather then raising it or visa versa. Mark each rope so that they cannot be confused.
Color coding is an easy method.
If you have to replace the ropes it might be a good idea to get two contrasting colors, i.e. green and red to distinguish the uphaul and downhaul rope. Finally, when rounding the leeward mark, it is not easy to get the blade back down. Make sure that you minimize the load on the blade before attempting to lower it. You might consider installing a type of purchase system similar to the one I have devised on my Harpoon. My solution was the result of my desire to install a purchase system with minimal invasive action.