47-55.1 Interior fireall cover?

[TX3100Guy]

I'm in the middle of installing the wiring harness and ensuring that all my interior wiring is as hidden as possible, while still being accessible if needed.

One of my concerns is the mounting of the firewall cover (see pic below) and how much of the wiring that I can get to either lay flat or get up high enough that this cover isn't on top of any wiring. While I have one of these covers and have altered it to allow my Vintage Air unit to mount against the firewall, I'm not thrilled with the cover.

Has anyone come up with an alternative way of covering/hiding the appearance of the upper (interior) firewall? I'd love to see photos of any alternatives.

Thanks.