I'm back from my trip and thought I'd tell what I did to keep my equipment secure. It turns out the safe was larger that I had remembered.
I took the following Canon equipment with me:
30D, 100-400mm, 70-300mm, 17-55mm, 10-22mm, 50mm, 85mm, 580 Flash. I also took 3 kenko closeup tubes and 3 teleconverters (didn't use any of these). The safe was big enough to hold all this equipment plus my check book and wallet. It couldn't hold all this plus my wife's purse, so we made a few adjustments when we weren't taking anything with us.
Before I left on our trip, I was at a Tractor Supply store and saw a briefcase sized aluminum case with locks. It was around $16 so I bought it and then went to Hobby Lobby and bought some foam sheets. After a little foam cutting, I came up with this poor man's Pelican case:
I stored everything in this case while traveling except the camera, the 70-300mm lens, 85mm lens, batteries, wires, filters, cleaning supplies, blower, etc. Those items I stored in a camera case most of the time and would switch lenses in and out of the safe to the camera case depending on where we were going and what I wanted to take. When I didn't take my camera and my wife's purse also had to be stored in the safe, I took the least expensive equipment out and stored in the Tractor Supply case. Then I buried it under some luggage or dirty clothes.
Anyway, I'm glad to report nothing was damaged or stolen during our trip and wanted to thank you for the suggestions.