Depending on how much you’d use it, the program rapid Resizer would work for what you want. I think is $40 a year and you can resize and download the finished pattern. I have paid for it yearly for quite a few years now. I don’t use it as much as before but still enough to keep paying for it. It’s a great program. You can’t download it you just pay for it and have access online when needed.
Im glad you can use the pattern. Hope we can see it when done.