When I was on a bicycle trip for 6 months in New Zealand with a 4x5, I packed it up safely for any move over a significant distance. I was already on a re-do trip after a previous photographic disaster to NZ, so protecting the camera was a very high priority. This was before the internet, I could not have gotten on the web and asked who had a spare 4x5 in NZ. The camera was 2.5 pounds with the 150mm lens on it. The pod/head (Gitzo Studex 300/Ballhead No.2) was about 7 to 7.5 pounds. The 5x7 goes of the same pod now with a Gitzo 1376 head. It's been working nicely (the pod/head is an 8.5 pound package). Strong enough pod that one can lean one it and travel rough ground without worrying about it. I can't close one leg completely easily since it got dented on the flight to Chile -- might drill the dent out.
When photographing relatively locally (western US), the 4x5 or 5x7 usually gets carried on the pod, ready to use. A friend once mentioned that with changing light, it is economically better to have the camera on the pod and ready to go. Otherwise one could easily miss several images (in the time it takes to get the camera out of a pack, etc) which might easily be sold for the worth of the camera several times over, or at least pay for the trip, so to speak. (And there is always insurance.)