IMHO, the Mofi SACD is an excellent version and you don’t need to try to find something better. It does play at the correct speed. You’re right that some of the earlier CD versions did not.
If you want to learn a little about what goes into finding the "best" version check out this thread from the Steve Hoffman Music Forums:
(1) Best Sounding Version of Kind of Blue | Steve Hoffman Music Forums
Those forums are where sound quality is discussed. If you go there, you may find that differences in sound quality discussed there may not be as significant to you as they are to some people on those forums.
That thread discusses both digital and vinyl versions, so that complicates matters too.
If you want to learn a little about what goes into finding the "best" version check out this thread from the Steve Hoffman Music Forums:
(1) Best Sounding Version of Kind of Blue | Steve Hoffman Music Forums
Those forums are where sound quality is discussed. If you go there, you may find that differences in sound quality discussed there may not be as significant to you as they are to some people on those forums.
That thread discusses both digital and vinyl versions, so that complicates matters too.