This is one setup I've been using since about February. I've been running low power only with a 10 watt RS-918 (McHF clone) and currently using a homemade base-loaded vertical wire antenna using a Spiderbeam 12m mast to erect it. The mast is guyed out to 3 tent stakes about 1/3 the way up and is very stable. The antenna has a 60-turn coil formed from wire wrapped on some 1.5"-ID Sch. 40 PVC. Every 5 turns I melted through the wire insulation and soldered on a spade terminal to allow various tap points to effect tuning or bypass the coil entirely. Below the coil the feedpoint is a Banana plug to BNC adapter to attach the vertical element and about 10, 20-ft radials on the ground side. From there, I can direct feed to the radio if the tap point works well, or, I put a manual T-network tuner box at the feedpoint to allow touching-up the antenna matching.
For power I can use a large battery ammo can containing a couple 18AH SLA batteries, or some small 6AH battery packs to keep it light. I also have provision for solar charging, and use that with the ammo can if I don't have to venture far from the truck.
All of these components (except the mast and large battery box+solar) fit into a day pack, along with my laptop and a bunch of odds and ends, like adapters and extra coax and HT, etc. For backpacking the gear in, I also have a SOTAbeams 17ft. tactical mini mast that packs down to 20 inches long strapped to the pack. I use this with the same antenna just with a shorter vertical wire above the coil and can still just barely get down to the top of 75m.
Here is the main gear components laid out. Matchbox, nano-VNA, antenna kit bag, radio kit bag, and laptop.
And some more shot from an activation last weekend.
In addition to all that, I also have a number of other antennas I've used. A linked dipole or an EFHW for 40 meters with an extension loaded element to work on 80m are probably my most used other ones.
If I want to run QRO, I take the full radio go-box out, this is usually for bigger occasions like a multi-day campsite trip or field day.