Welcome aboard.
Mike is right.
If the motor and pump running have to be the fluid 50% of the time and 50% the pump in your case.
If you need a new assembly, will be $300-700.
If you are in need for one I will try to find the best deal out there for you.
Yes the red one is the trim tab pump. The bottom of the pump (white) is the reservoir and has a full line indicator on it. The black screw in the center is the fill.