+1 to that.. especially if you're already planning on using an already profiled cabinet.
For me, personally, this approach made it so much easier to get into making profiles. I'm not a studio engineer and have no experience mic'ing up cabinets, and I also don't have a good room to profile in anyway.
Much easier to only concern yourself about dialing in the heads to the tones you like. Grabbing that as a DI profile is extremely easy and satisfying.
All of this assuming your amp has a direct out of course, or perhaps you have a loadbox...
Do I need to hook a DI box from the recording out and then into the Kemper? I was thinking it was possible to take the FX send and profile the pre-amp that way.