Please can you show us a screen shot? It's a bit difficult imagining the effect :)

You could easily do that within CC3 by using an RGB Process Matrix. Here is a very ordinary colour scheme turned bright red/orange by a single matrix on the whole map. I used the Unity predefined matrix and just knocked out the blue and most of the green - emphasising the red.

Another version that is probably closer to the colour. I used the first active matrix to turn everything grey, and the second one to turn everything a muddy pale orange. This is the result of the first matrix, followed by the result of the second one.

You can adjust them both to give various different shades, and maybe use one set on one sheet and another set on another sheet for different grades of orange-ness and brightness. I've just used the whole map setting for a quick result.

You're welcome :)

After a while you get better at guess-reading it. The only time I have real difficulty is if I need to be able to see the numbers for sure.

Messing around again....

I think the trap doors in the floor at 4 might be on the wrong sheet. They have shadows as if they are tables sitting corner to corner.

Otherwise, nice mapping Jim :)