Good trainers
are hard to come by. You'll probably be fine as you have some experience in training yourself. The main thing will be keeping good form and the PT can probably guide you in that.
I train with a guy who has proved his worth over a couple of years since I have no ACL in one knee and had a rotator cuff (detached supraspinatus tendon) repair in February this year. He was able to design a routine (similar to what you have planned, high reps, low weights and form, form, form) that worked around and strengthened the injured areas so that I can now lift heavy again.
When I first went him with the unstable leg, he helped me learn how to target certain muscles to stabilize my knee so that I only notice it when the weather changes
With your BK amp, you'll probably be able to squat so long as the knee stays stable. One thing I learned about the compromised knee: Don't bend it over 90° while training.
I go to a local small gym so the marketing thing isn't so much on their agenda as good member service is.
