I absolutely love the aesthetic of the C26, but it is too small for anything I would purpose it for. If it were large enough for a 360 AIO and full size 5080/5090 I would want one. I understand you are aiming for travel portability and that would make it too big. At the end of the day, just about anything you could build would be much better than a laptop. If you are traveling by car most of the time something like that should be fine. I can't see traveling frequently by air with something like the C26 plus monitor, keyboard and mouse, but it might work.
I think I am going to be going the Lian Li A3 black all mesh with wood front route with the B850MPOWER and 3070 FTW3. Then I can use my 360 AIO inside of it. The side mount bracket for 120mm fans should really help keep heavily overclocked DDR5 thermals from going bonkers. The bracket seems to be ideally placed to blow directly on the memory.
A friend at oc.net loaned me his TG delid tool and heater so I will likely delid the 270K Plus sometime before the end of next weekend. I purchased a Mycro Pro LGA1851 direct die block. This 270K Plus runs freakishly cool. I'm astonished by that and it technically does not need to be delidded running the clocks and voltage I am currently running, but I am gonig to do it anyway just because it will be better and give me more clock/voltage headroom. If I were going to run it the way I am using it now forever there would be no valid reason or benefit to delid it. Cinebench core max is like 83°C. This CPU would be perfect inside of a mobile platform with a chunky chassis for folks that still like them.