For a while now my favorite pack has been the Mt. Smith Day lumbar pack with shoulder straps. It’s my daily use pack, and is especially good on a bicycle. It rides on my hips, keeping my back free to vent heat from cycling, and extremely stable. It has a limited capability to lash items to it, and I’d like to find something that also rides well on the hips and low, but with a frame so I can tie bulky items to it. I’ve been looking at the small framed alpine rucks from Swiss and Swedish surplus, from the 40s and 50s, canvas and steel, seem pretty bomb proof, if a little heavy. Anyone make a modern equivalent? Or a framed lumbar pack? Anyone every try to build such a thing? It looks like packs are getting to be quit modular. I’m not so familiar with Pals webbing and Molle type rucks, anything in modern milsurp that could fit the bill? Thanks!