Hi, welcome and have fun here in the forum and with your Kemper. Thanks for sharing your story and thoughts. I like the humor in it very much
And it seems like you're enjoying the machine already before it's there. Good thing. Indeed you do not need more to start than you described. Will work that way.
Just two notes: Typically we guitar players enjoy sound in the room, depending on what you played before using only headphones might not give you the full experience. That's at least for me a topic. I somethimes use headphones but try to get the sound from speakers (whatever type) whenever I can.
Second thing and just for awareness: Be careful with the tweaking you do when using the headphones. Fletcher/Munson effect might trick you and once you put it on real speakers and make loud it may sound not so good as you expect. That's a very common thing what people experience when they are new to the Kemper. Dial in your tones at gig level is the typical advice here
So, welcome again and enjoy!