Dave,
You didn't mention what cume level you are currently using of A7.3 but at cume 10 we had to modify several programs to handle not only ILE but also SQLILE. J98CRTRPG had to handle both types as well J980102 had to also be modified for ILE. Then P98CRTPGM, P9801, & P98410 had to have additional code for ILE and/or SQL ILE. You may also want to consider a CPYL source type for ILE copy books.
Another thing to note is that the source file for the ILE code does not have to have the longer record length (112 vs. 92) but which ever record length is chosen, the source file for the copy books should be the same.