After several years of leaving the DSLR gear at home and just using a phone, I'm about to plunge into a new camera purchase with the express purpose of better documenting our mountain trips. I need some ideas to figure out a way to carry it all in such a way that it's at hand at a moment's notice, yet not in the way or a liability when pushing through thick scrub or scrambling/climbing.
By 'it all' I'm referring a Micro Four Thirds system, specifically a Panasonic GX8 with 2-3 compact lenses, an external mic and a tabletop tripod. So not a massive bulk of gear to carry but definitely a bit more than a phone or compact camera.
My photo/video style is pretty well 'run and gun', which is to say we don't stop much when we're walking. Stopping, taking off a backpack, digging out gear, assembling it, taking a photo or filming a sequence then reversing the process before moving on happen. Basically my significant other doesn't like stopping (she chills quickly) so I do pretty well everything on the move

I've experimented with chest packs/rigs in the past and found them awkward and liable to damage - gear and/or myself - in the event of a trip/fall so I'm erring towards a pair of bags that can be fixed to belt straps of whatever backpack I'm wearing at the time (neither my Arcteryx Bora AR nor Salomon X-Alp 23 have sizable belt pockets).
So far I'm coming up short with low profile yet still somewhat padded/protective options. About the best thing I've found so far are the ThinkTank Photo filter bags - minus the filter pockets, of course.
Anyone got any suggestions?
Cheers, Ben.