Thanks - I did a dry run with a buddy a few weeks ago. Tested out the gear, brought the dog, was near the truck. It's definitely doable. The big takeaway from that trip was the need to strip weight off the pack.One approach is to get up into a campground that is relatively well-off the beaten path but that you can drive to and just camp one night next to your vehicle. That way you can always get inside your car/truck if needed. Do that once then stretch it to 2-3 nights. Then backpack in a few hundred yards and camp one night. A couple hundred yards makes all the difference but your are not far from a safe haven if necessary. Build up your distance and duration until you are ok with being several miles from the trailhead and on your own. It also lets you really test out your campong setup in terms of what works and what doesn't and what is essential vs. what is nice to have. I've paired a good 8 lbs of gear out of my pack taking these trial runs.