Thank you one and all for your responses. I was, unfortunately, unable to get back online until now (computer in shop getting a 2TB SSD internal HD, which BTW cut file copying time by 75%).
To answer some of the questions as to use. All my photography is for me - a very serious amateur. I either post photos online for myself, family and friends (see
https://www.davidledermanphotography.com/), print them at typically 16 x 20 to hang in my house or give to friends , or create Blurb books for myself or to give as gifts to people who have us stay with them. Typically I do landscapes and street photography. I have to confess to being a pixel peeper - everything I either print or post has been viewed at 100% and sharpened accordingly. So I am not going to compromise quality if I can help it. I was hoping that a $2,000 budget would allow for quality and flexibility at a reasonable weight in a small camera.
As I stated in my initial post, a few years ago I tried the Sony NEX7 with the more expensive lenses. I really liked the quality of the images and the camera's size and weight. I hated the ergonomics and the menu system. There were so many times that I moved buttons and dials by mistake that it became a real negative to use. No matter what anyone says, the menus are a real trial. Have they improved? I am willing to take a look at the newer Sonys for size and weight. If the dials and buttons are still like they used to be and the menus are the same level of density, then it's probably a nonstarter.
In any case the main trip I want the lightweight option for starts end of November, so we'll see if anything pops up before then. If not, I'll probably take the 5D MK 4 and two lenses - my 16-35 and an old 28-105. While I love the image quality on my 70-200 I just don't take that many medium telephoto shots.
I'd love to see a compact with a 20-200 high quality lens, full frame sensor,really light weight, excellent ergonomics and easy to use menu. I'd be willing to pay up for that.
Thanks again.