Shoulder vs Knee Replacement

I am in recovery from a right RTSR, and am doing well. My other shoulder and both knees are bone on bone, and all need replacement. I have met with three different ortho surgeons in the same practice for various issues. One surgeon pointed out that I’ll need two functional shoulders to use a walker after knee surgery. However, both my knees are misaligned, badly affecting my gait and balance. One leg is slightly shorter than the other. I am afraid to wait much longer on the knees for fear walking will become even more challenging. My shoulder surgeon says it is entirely up to me and recommends I do my left knee first, which is the longer leg but more severely “curved”. Won’t my gait be even worse after that knee is repaired? Bilateral knee replacement is not an option. Does anyone have any advice on any of this?