you could start with an IR, use Fabfilter to do the EQ matching, then use Voxengo Deconvolver to create a sweep of the IR + Fabfilter,
turn this into an IR (again, with deconvolver) and import this IR into Rig Manager.
Since just disabling the CABINET activates CabDriver, you'll have to import the 'starting point' IR first, and then record your track to be matched with FabFilter.
Thanks for the detailed guide, but to avoid all these steps, it would be nice to have a tonematching function inside the Kemper!
profiler + tonematching = killer machine ever!