You're more than welcome.
I've considered buying a C36 in the past on several occasions but sadly never found the right car. I also considered modifications and when it came to the engine the only thing I fancied was fitting standalone ECU and throttle bodies, along with getting the engine balanced and a maybe a bit cylinder head porting. One other item on the list was to fit a manual transmission. But that was it as I don't think they really need much modification and I wouldn't have liked to stray too far away from the original anyway as they were the first official AMG's.