Do all 722.6 5 spd automatics share the same transmission housing and bell housing bolt pattern?

Besides the internals....does a 722.6 that came from a V6, V8 and V12 can bolt up to a different engine? Like say a CL55 transmission bolting up to a V12. I know with other manufactures the bell housing was different to deal with the different V angles. Such as a 90 degree V8 and a 60 degree V6. But looking at the 722.6 the pattern to the bell housing is pratically a circle so not sure if Mercedes did the samething.
Can anyone verify this? Thanks

P.S. I want to use a CL55 transmission on my M120 V12 project since that transmission would be considered an upgrade.