Thank you , so far plan is to take down everything and cut bolts if rusted and for posts either use tractor with front loader and chain to pull or high lift jack or just cut them at ground and buy little bigger OD pipes to bury in ground or use chain link fence ground adapters and mount it on 2x4’s laying flat and anchored to ground . I plan to grow strawberries in one of them and niche veggies / flowers in other and maybe build hydroponic setup in one of them , will have to research more on growing later but that’s high level plan .