Hi all, thanks for the replies. Here is what I have found:
I called Dee Zee and they no longer make the 5th wheel tailgates. Darn.
To answer HBillSmith regarding the rear view camera, Husky Liners does have a rear view camera bracket available for their tailgate, but they don't have the insert to close the center opening. I could probably make an insert without much trouble.
Thanks to md_procouple for the suggestion of the Stromberg Carlson, but as far as I've found the ones with the lock and center insert are plastic.
Rhagflo mentioned the Custom Flow models that look good. Does anyone have experience with CarID? The reviews I have seen of them are mixed at best.
Makario's RV lists the Custom Flow on their site. I phoned them and they are very helpful. They are checking with the manufacturer.
I think for now I'll follow Donn0128's lead and keep the stock tailgate on and just be careful. I have a nice bed cover on the way (Pace Edwards Switchblade) which should be a nice combo.
Thanks
Will