CollieHauler, nice to see you on here..
We got our Plexiglas pre-cut at a place that sells Plexiglas in Colorado Springs. They also have the tinted Plexiglas. I am sure other places that sell it will do it too. They rounded the corners nicely for us. We also gave them the measurements and they did a great job.
Save your scraps to put in your cabinets to keep things from falling out when on the road. The medicine cabinet is one place that works great. Also we saved 2 larger pieces to put around the area cooking of the cook stove, to protect the wall.
I just saw your post where you fixed it already. I am a little late in my post. :)