To add to the point above: I’ve been thinking about your hike and, honestly, I kind of disagree with the idea of just getting any generic hard case if you're hitting the Rockies. Over the years, I've seen way too many people buy those cheap lunchbox style cases that use pick-and-pluck foam. That stuff is trash for hiking because it disintegrates from the constant vibration in your pack and leaves bits of foam inside your motors. Use the wrong foam and you're basically sandblasting your gear from the inside. If you want technical specs that actually matter for protection, look at the Lykus Titan MA210 Waterproof Hard Case for DJI Avata 2. It’s well within your budget and uses CNC-cut foam that supports the drone by the frame, not the ducts or props. It’s basically airtight too. Another solid choice is the GPC Go Professional Cases DJI Avata 2 Hard Case. In my experience, GPC has the best water-tight seals in the industry, which is clutch for unpredictable mountain weather. The trade-off is always weight vs protection tho. The GPC is a bit of a brick at nearly 4 lbs. If you're doing heavy mileage, that matters. But for keeping your Goggles 3 and Motion controller safe from a fall? Nothing beats it. Just make sure whatever you get has a pressure equalization valve since you're heading to high altitude... otherwise you wont be able to get the case open at the summit without a crowbar.

I spent a lot of time searching for a middle ground that wouldnt break the bank but still offered real security. After looking at a bunch of options, I eventually went with the STARTRC Avata 2 Waterproof Carrying Case and I have been extremely satisfied with the results. It completely eliminates that fear of components crushing each other during a climb. Here are the main reasons this one works so well:

• Precision molded slots ensure the props and goggle lenses never make contact with anything else.
• The pressure equalization valve is actually useful when youre changing elevation in the mountains.
• It uses a high-strength ABS plastic that doesnt flex when you stack other gear on top of it. I took mine through some pretty dusty trails recently and have no complaints at all. Its a very methodical design that fits the drone, goggles, and three batteries perfectly. For under 80 dollars, it really is the sweet spot for value.

honestly i totally get the anxiety with that stock bag... it's just way too cramped for comfort. i learned the hard way a few years back when i took a similar setup on a long trek through the mountains. i thought i was being smart by saving weight with a soft-sided pack but when i reached the summit i realized the pressure from my other gear had actually pressed the controller sticks right into the goggle lenses the whole way up. basically ruined a perfect day of flying because of a permanent scratch right in my line of sight. tbh i would suggest you be really careful with anything that lets the gear shift around even a little bit. if the components can wiggle while you're scrambling over rocks you're gonna have a bad time. i eventually switched to a proper hard shell with foam and the peace of mind is worth it. just make sure the latch system is solid enough that it wont pop open if you happen to drop your pack on the trail.