(On edit, I see Mark beat me at pressing the submit button.)
Welcome to the forum. Last time I was in Southeast Asia there was a war going on, my camera used film and I didn't even dream of doing video.
If I was backpacking (and wanted a new camcorder) I would get a Sony GW77 and not worry about a mic. It is small, rugged, waterproof and dust proof. It is well documented on another thread here.
But, based on your list, a Panasonic HC-V700M might work well. It is also documented in a thread here.
I have a camera similar to the V700 and left it home on a recent three week trip where we limited ourselves to backpack sized carry on luggage. I took a Sony RX100 and a Sony HX9V for backup. I am happy with both the video and photos I took. They would not be better with a bigger camera. The RX-100 is not documented on this forum. The HX9V was documented a year ago. The current version of it is called an HX20V.
The best way to store footage on the road is SD cards. They are nearly indestructible. Unfortunately, there are not very many ways to back them up without a computer. My ideal system would be a small tablet that would read SD cards. I could either use the tablet to be the backup or use it to transfer video files to a second SD card as the backup. It may be that the new iPad mini has a SD card reader, but I've not checked.
Another way to minimize loss of video data is to use a lot of small SD cards instead of a few big ones. That way if one failed only a fraction of the video files would be lost. Frankly, other than stupid formatting mistakes, people never seem to report SD card failures.