I have a Texan turret, seven station, all cast iron very solid. The redding is built the same way all cast iron no alloy to bend or fracture when least expected. I use it mainly as a seating press because the resizing operations are taken care of by other single stage presses. I use it as it is, not a stand in for a true progerssive loading machine.
With Reddings construction and quality it should serve you very well. I think there are extra die plates avaiable for it to increase capicacity.
As far as warranty, I think it's like Dillons, if it should break they fix it. No time limit. You would have to check with them on it. I think it's a great addition to any loading bench.