Power Steering Pump Reservoir Capacity?

[mike4089]

I am retro fitting a 5.3 into a jeep cj, I needed to buy a power steering pump bracket for the motor and i found one cheap but it had a power steering pump on it from a chevy express van. The pump has the externally mounted reservoir. I would like to try and use this pump rather then the other stylem, but the reservoir from chevy is 110 dollars. I was thinknig i could make something or try and use a reservoir off something else. But i dont know the capacity that the pump needs. I dont want to put something to small on it and have it not hold enough fluid. Any help on where i can get a factory reservoir, or how much fluid this thing hold would be great.