That would be a custom hand made frame , made to your specifications,
and sizing needs , then fitted with just the parts you prefer.

several frame builders can satisfy that desire.. You got a sky's the limit budget?


One feature a touring bike is better for having is a stiff top tube.
laterally stiff , I Built a frame with 2 side by side top tubes.
I handles with a touring load so much nicer than my 'classic'
specialized expedition, which had an oscillation with every pedal stroke,
because the load on the rear rack worked like a lever.
tail literally can wag the dog.

a laterally ovalized top tube may be a fairly light frame build solution..