Nice thing about both of those choices is that they can be DIY'd pretty easily, so you can probably get them both with the right budget. If I wanted to build a super hardcore car deadlift simulator, I'd get some 1.5" ID pipe, cut it to about 8' and make some collars with gorilla tape on one end. The other end just gets shoved in a corner with a dumbbell/weight over it anyway.
Nice thing about starting out with pipe is that you can build the proper handles onto it using a reducer. It'll just screw right on.
Not too sure how much weight the pipes can handle without bending though.