Harpo, just for kicks, I suggest you call LL and ask them if they have a recommendation for your shield. They don't specifically sell for aftermarket shields, but their website suggests you do this. A 2" wider lip may have been better for me. When fitted to a stock windshield the LL is wider than the shield (overhangs), and the dual locks align closer to the edge. This tends to allow the LL to have more bow than the stock shield, so it stands off a little higher and fits without flexing the LL. My installation required flexing the LL, or spreading it so the dual locks could lie flat.
If you can find one at 24 to26" that is what I would do. You have 30 days to try it out and see if it will work, so use the trial period. I bought mine used, and am satisfied, but if you pay for a new one, you have the option of sending it back.
Hope this helps.