When Lionel came out with those kits I was and still am confused as to exactly which cars they will convert. The one thing I have found out is those kits will definitely work on the "LionScale" cars which are the tooling they got from Weaver.
Pretty sure those IM wheelsets will not retain the rotating cap feature if used in trucks with rotating bearing caps. Sorry I couldn't be of more help. I will be following this thread. Always willing to learn more about this stuff.