I have for your consideration a Black Mountain Cycles La Cabra 18" full build. Bought this last August from someone in Charlottesville on Marketplace and have only ridden it 29 miles since then, so I'm just going to use the text from that listing because nothing has changed.
Frame and components are in excellent condition.
pics hereSize 18” (recommended for 5’7” - 5’11”; I'm 5'10.5")
Steel frame and fork with all the mounts you’d ever need for bike packing, racks, etc.
Currently set up tubeless with 27.5 x 2.6 rear and 27.5 x 2.8 front maxxis rekons, Shimano XT 11 speed with microshift bar end shifter, avid bb7 mechanical disk brakes, Thomson elite seat post and stem, Ritchey beacon dirt drop bars, trp levers, and brooks bar tape. No saddle conveys.
Super fun and capable bike, but MTB is not for me. Local pickup in Richmond, VA, or ship at your expense.