The right angle usb, which I imagined did exist, is a good option.
But I see that, except for the mic input, I'm having the same problem I did with my Blackmagic Pocket camera: how to clamp the 1/8" plugs.
This is not a new problem, as since walkman times I've been making short adapters to proper sturdy connectors: 1/4" plugs and XLR sockets.
The ones I use on my BM camera are never unplugged, particularly the one for power.
Used as I am to lockable connectors, I'm thinking what could I do with the USB interface. That mini-usb is very frail and, different from cell phones, I think it's a bit more exposed to likely accidents on location, Like pulling the cable or something.
It happened to me two days ago, at home, when I had a battery connected to it and the battery fell down. The attached mini-usb bent a little, and I had to repair it. Nothing serious, but I had that type of accident with mini-usbs before. They are not reliable.
One thing I'm thinking of doing is having a cable just for power, with a plugged interface in between. Not sure yet what to use as interface.
Another thing I'm considering, this related to audio link with the camera, is finding an inexpensive way to wireless the sound to it. Particularly because of the slate beep for editing.
BTW: my wife made a DR-70 first version case. That's what got me thinking on the cables.