I have a Wista 45SP metal field camera with a graflock back, flip up 4x5 hood and 6x9 sliding film holder. I'm glad it's metal because I would have smashed a wooden field camera a few times by now. I crawl and climb to places that make a wood camera a bit of a liability.
I'll sling the carrying strap through my tripod shoulder strap and sling that across from one shoulder to the other side to climb ladders and stuff like that. It bangs around a bit but I'm not too concerned. It's built like a tank.