Hey their William_F,
Sorry I haven't gotten back to your PM. Been not feeling to great the last couple of days. I will try n get back to you tonight.
As for the Continental Kit, I believe all of the aftermarket ones available are like you say, a fiberglass mold which is flat on the bottom. I believe it is mounted using the Red 3M double sided tape so mounting shouldn't be an issue, however I am not sure it would really look right without having the bumper to balance it out, and then with the bottom being flat, I would think it just might look a bit awkward.
I really wish I could offer you better advice on it, but honestly, I am just not sure this particular look would come out quite right on this one.
Go easy, and I will catch ya later.
Candyman