Hitting bumps is a situation experience very frequently. In any vehicle really. Taking dad out for a cruise in his truck yesterday we were constantly hitting the bump stops. In the Gladiator when I was running the standard springs (and they were overloaded) I hit the bumps ALL the time. Once I installed the progressive bump stops the harshness was decreased by at least 85%. When I upgraded to the HD springs I did not really hit them but the ride was far too harsh for my body. In the TJ not so much but the shocks are stupid stiff and very uncomfortable, almost downright not drivable until I get the suspension fixed. In the LJ (all stock and rides very well for my broken bones) still frequently hitting the bump stops but not a constant occurrence and not full compressing them - as weight is added for camping adventures, I expect to hit them harder and more frequent. Hopefully within the next 6 months it will be on a 2-2.5" lift.
I want to address the harshness of the bumps fully compressing and allowing metal on metal contact without requiring an overly stiff shock or spring. The Gladiator when on the SD springs, not overweight, and with the progressive bumps, rode absolutely perfect for me and my bodily issues. The only way I can think to do that on the TJ and LJ is utilizing something similar to to the progressive bump stops I had on the Gladiator. You could still feel the hit on the bumps, but it was like a poor mans active hydro-stop and the hit was significantly softer - almost unnoticeable if you didnt experience the impact on the stock bumps.
Not going very fast. Depending on road conditions anywhere from 40 (basically a standard gravel county road) to 5mph where it's riddled with potholes. A frequent occurrence that everyone can relate to is coming around a corner maybe at 15mph, kinda a standard speed, and suddenly there is a typical wooden bridge where the bridge departure is a bit sudden, maybe the gravel is a few inches below the bridge deck, and maybe it wasn't easy to see until it was too late - everyone has been there.... Usually, this would cause bumps to be hit. I have not yet personally experienced the LJ actually fully compressing the bump stops. But as I add weight for camping, I'm sure it will and I want to avoid that before it happens. I dont like the idea of metal on metal contact being a possibility.
Everything you describe is a shock issue to be addressed before exotic jounces.
