The bent chassis wont hurt anything. As long as its not moving it will just center in whatever orientation its in. You can even mount the vertically if you want to afaik
Having siad all the I'm going off of gyros like 10 years ago. IDK jack about AVC specifically.
I dont use any receivers with AVC but I remember back when I tried using a gyro in my high speed Rusty that if the kit wasn't sitting flat and level when I turned on the power the gyro would act buggy. like it set its orientation when it was given pwoer and the esc was booting up. Once the ESC...