I can tell you that any bed cover that requires rails to be installed to be flush mounted will not work. I have looked at many, and those braces will Charlie Bravo all of them. The ONLY one I think might work is the Extang Solid Fold 2.0 because it sits on top of the bed rails and the front clamps are 16" back from the cab (according to Extang). The ONLY issue, might be the spring clamps they use at the rear because I have the Bed Utility Group and that's yet another set of rails to do with.
To be honest, the fact that we have to wonder about any of this is quite frustrating. The dealers know nothing, and RAM customer service knows nothing. I've been waiting for a call back from RAM since last Wednesday about this, and I've sent a message to
@RamCares in this forum...and nothing. I love the tailgate, I think it's worth the $1,000, but dang it, someone needs to know something about those braces and their impact on covers and toppers!