Veloci Cycle "Disko" Gravel/Touring build

Im pretty sure I have to shorten the hydraulic cables. If I disconnect it at the lever and keep it high all the time I might get lucky with just a minor burp apart from bleeding the whole system, or am I’m mistaken in assuming this?

I'm fairly certainly that you need to cut SRAM road cables at the caliper end. You can still get away with it but you can get 3rd part kits quite cheap.