I'll swap out the torsion axles for softer ones soon---took almost 10 months to get them, with all the supply chain shortages.
But first to fabricate a rear bumper. Couldn't locate a stock one, and had some leftover 1x3x1/8" tubing, soooooo... arced the majority of it's length to match back of car-body... bent up some simple brackets... bolted the bumper in place... split the ends to facilitate heating & curling them around the corner of body... and tack-welded the split ends back together again.
More welding & grinding to come. A little crude, but it should do the job.......