Well, I tried resizing, but they are still pretty big .... sorry.
I have the print I made up for the base, which seems to have a pretty good fit. I think the original might be about an inch longer than what this one is, but I didn't want it to stick out past the back of the rear seat. I used the velcro to hold it down for the weekend and it worked great. I pulled it off for roading and it was fine skiing at 36 mph. It sat with rain dripping on it, so it did get wet and the strip pulled off the bottom of the seat, but I think in normal conditions it will be fine. The print is simply measurements that I took with a tape measure and then guessed what the orignal value would likely be.