My concern is that the oven will get pretty hot if we're cooking a pizza or something, and I don't want to catch the galley on fire. No worries about the cook top portion, that should work well enough when it's parked in the counter with the burners lit, but the oven may be a different story. Here's a picture of what we will be using in the build. This is Jerry's rig with the stove-oven built in place. He has about a 1 1/2" gap around it, but hasn't used it yet, so no feedback from his installation yet. He did a very nice job on his build.
I've also thought of just using a sheet metal panel (aluminum) on 3 sides & the bottom, to create an air gap around the oven and provide a barrier against the heat and protect the wood. As always, your input is valued, especially if you have one of these things and use it regularly to cook in your rig. Thanks, tim
