I just added an 80 mm frame 1kw servo to mine. ( just new motor plate required) has 4nm torque . But the motor I had in stock maxes out at 3800 rpm.)
Used a programmable drive to get the indexing spot on for atc alignment.
Original motor and drive were perfect , but for the life of me I couldn't get it to index correctly ( home) due to macro loop 10ms latency.
https://youtu.be/MGVGbKunn5Q