OK, we'll be on your case but undoubtedly in a nice way.
You can cut graceful curves with a skill saw. I learned that on my build from Jacques, and it works great. Also, since you are going to fillet all the joints and tape them, the cuts don't have to be perfect. Even if you have a bit of tear-out, which probably won't be much, you will be filling it with wood flour and epoxy.
Good luck and send pictures.
