I think you have to many contrpations for the space.
And maybe not the best arrangement.
So, how does that help you now.
I'm not sure, except maybe you could sell or donate soem of that, and put towards a used powerrack from Craigs List or Ebay, etc.
Meanwhile, you perhaps could Front Squat to minimize the risks of crashing down with weight on your back.
Step Ups or Lunges + Deadlifts can take care of you as well, imo.
At least for awhile
Well I do admit that the pics make it look really crowded, but please know that the bench does fold up. So it's not a heavy duty bench, but when folded up allows space for me to deadlift. Also the rack folds up and fits neatly behind the pic of the weight plates. Now front squats and hack squats are a great idea so I may give it a try. But again agree for the space that I have I'm maxed out in equipment, but I won't allow that to stop me from training! For now I just have to train smart.