Boeing customise the B744 according to the customers wishes - hydraulic preferences being one of them. However, I do not know of any Freighter that has a 10 tonne tank in the stab (is that what you mean by "guts"?). The 747 classic (BA '36' versions) only had an aux. pump on No.4 system, for push-back reasons. Having an Aux. pump on No.1 as well allows you to start in sequence 1234 or 4321 - autostart options aside.