Or you could look up a tiny case like:
https://store.nfc-systems.com/products/skyreach-4-tiny
I have one and hopefully, it will fit:
B650e-i MB
Ryzen 9 7900
GaN 250W PSU
64GB RAM
6TB NVME
RTX A2000 with this mod.
Something a little more personal than P360 and just as portable.