Kifaru stupidly discontinued the Marauder.

If you could find one that would be great. ~2,000 cubic inch panel loader. Here's mine with a chainsaw and a Duplex belt. 18" stays...

[img]http://https://photos.app.goo.gl/M4A6Fr5UXFTQvuZK9[/img]

I'd add MR Pop-ups to the list, I had an 18. It was about the size as my Kifaru Scout, and could flip stays up, but wasn't as robust as a pack frame, so a bit gimmicky, no experience with the bigger pop-ups with more robust overload.

My Crewcab is probably my favorite "Daypack" designed to haul bigger, especially since putting it on a 1st gen Guidelight frame...