I don’t see any problem applying the individual victory rules from Revised to 1942. However, I agree with Tekkyy that it’s probably better done later on. I also believe that the individual victory rules from Classic are better. In those rules, the individual winner is the player that increases his/her IPC total by the highest percentage, rather than by the highest number.
The spreadsheet comparing the Revised and Anniversary rules can be found here as well. As Tekkyy mentioned, there are only very small differences between the Anniversary rules (though you also need to read the errata) and the 1942 rules, once you get past the absence of Italy and China as separate powers.