RV blinds

I had to restring 7 of them this last winter as the blinds are 10 years old and all the strings were failing. I got my things at dirty blind man .com. I bought a 150 ft roll of cord and had to order another one to finish up the last 2 I need to do. They are not that hard after you mastered the first one. He has specialized kits for your size of blinds but doing the math it was way cheap to get the roll of cord.