It's not a hard job as such, but a real PITA-type job. We've never had this happen either at home or in our '07 ROO....are they getting exceptionally hard use? You might be able to do this, but IMHO, you're ahead time and frustration to just head to the local Big Box Home store with measurements in hand. They will custom cut them for you. IIRC, you'll still need to adjust for length, but that's all. When I did our ROO, there was the blind over the sofa + a larger square window over the dinette, custom cut and seems like it was about $50. Remember to get new brackets for holding the bottom in place.