I have known of people to buy a walker for $5, and use it for a dipping station. It folds up, too. Hell, cinder blocks stacked up can be a poor-man’s dip station. Just use something so that your hands don’t chafe on the concrete.
Had a machine shop guy cut an old 5 foot bar in half. Made a plate-loading pair of kettlebell handles. He drilled holes through the ends for bolts.