On your comment, not covered so far …
Yes, quite right.
I’ve been doing HF portable (mainly QRP) since the mid 90’s and roughly once a week since doing SOTA from 2017 and wet/battered/lost hasn’t been a problem by my following a few simple rules, and at minimal cost.
WET
Best to avoid activating on very heavy rain days. If there’s the remotest chance of rain or hilltop mist, I carry and operate my precious KX2 within a large transparent toilet bag. If you search on “toilet bag @g8cpz” you’ll see about 5 posts of my descriptions and photos of how to operate the rig inside such a bag.
I’ve never had a serious wet rig problem, although condensation in very humid wx (e.g. hill fog) is hard to avoid. After a wet op, I put all my HF gear in a warm room overnight [including my 6m pole fully telescoped] and check thoroughly before stowing it the next day.
I carry a rite in the rain notebook for paper logging in the rain (since once my pencil log faded like invisible ink on normal paper after getting soaked). I’m too mean / it’s too expensive to use it on dry days but it’s in the go-bag for, er well, a rainy day.
BATTERED
I’ve never had this problem, e.g. my ~21yo FT817 and ~8yo KX2 look and work like new after 100’s of portable ops. You can of course buy fancy bags to protect the rig, key, etc during transit but low-cost solutions like wrapping in bubble-wrap or clothing and stowing in the middle of your rucksack work just as well.
At the summit, don’t place your rig high up (e.g. on big rocks or stone walls) to fall when you trip over a cable or walk off with the earphones on & still plugged in. Operate the rig close to the ground with it placed on something soft like your rucksack. During setup, leave the rig in the rucksack until last, and when QRT, pack it away first.
LOST
This is about your personal routine which only you can perfect over many activations. Once perfected, stick to the routine. Try to minimize the total number of things you take – more things means more to lose or to go wrong. Keep related items in separate bags. I have bags for the HF rig/morse key/mic, the 2m FM HT/whip ant, the HF antenna components, etc. Get in the habit of checking that each bag has the expected contents before it goes in the rucksack.
Before leaving the area, walk around checking for anything still on the ground (e.g. guying pegs, pencils). All this might seem obvious or even a bit condescending but you would be surprised by how often I read about experienced activators losing stuff.
Have fun on HF.