Front squats can be uncomfortable for a lot of people, but, I want you to do them. If you can hold the bar in the front rack position, do it. Otherwise, use a bodybuilder-style. If you want to work on your mobility, attach straps to the bar and hang on to them as you squat.
You're not doing 1-1/4 reps this week, but I still want you to slow down the eccentric portion of the lift. You'll need a lot of control and strength to do it, but I want you to use a 4-count to lower yourself down. Once you hit the bottom, explode up to finish the lift.
If you can't use all four pieces of equipment, look for suitable substitutes, or perform straight sets with short rests.