The price for most of these wheel extensions is, frankly, outrageous. I know everyone has to make a profit for their work, but c'mon. Really?
I dig some more digging on this site and elsewhwere around the web and decided to try the old flip & switch trick. Took all of maybe 20 minutes. The wheels reversed (L for R & R for L) does make a noticeable difference. Looks like I gained maybe 2-3 inches wider stance. I hadn't even thought about it, but this simple swap may also create enough additional space between the rear tires now to prevent my 3pt lower arms from swinging and banging into them. That would be a great side benefit!