Well, I guess it must be possible - after all, early computers were built from discrete components, weren't they?
But they occupied the space of a small house, and required a similar amount of power, and a staff of men in white coats to look after them:


What, exactly, is your objective in this exercise?

I doubt very much that schematics exist - but there are certainly HDL^[1] models available...



[1] HDL = "Hardware Description Language"; eg, VHDL, Verilog.