So, I finally took the Kraton out over the weekend.
It was simply a test run to see if it held together after the rebuild and adjustments that I made with the motor, gearing and steering.
In short it was fine, didn't catch fire and ran pretty well.
The steering servo (Savox SW-0241) was woefully bad though, turning circles were silly and maneuverability was painful. So that was an area I HAD to improve ASAP.
After barging into AJ's thread and quizzing him about suitable servos, I picked up a 65kg Power HD servo which will hopefully give me more ability in that department.
I also managed to successfully trim the steering rack with a Dremel and smooth it off enough to clear the motor. It's tight but clears it, I'll just keep an eye on it after use and adjust if needed.
If it does fail, or cause issues I'll pick up the M2C part but if it works/lasts that's a bonus.
***Last pic is the steering at it worst/closest point of the travel.