Thank you AndrewK and ctshort09. Yes, my brain was clearly fogged. HA! Then I had an epiphany and thought - "Wait! this is simple geometry. As I write this, both corners are already cut to radius. BTW, as a new owner who isn't even going to take possession until May 14, I must admit to being bummed at the rally cancellation. We have been organizing supplies and outfitting and are 95% ready to go. Not certain if we will go on to Guntersville anyway or some other direction. Anyway, thanks for the advice. By the time I got back to my computer it was done . . . but the fast response was appreciated.
Cheers, Scott Dyer