Well, both aftermarket and stock front sway bars mount the end links to tabs on the LCA. The difference with the aftermarket bars is you have to add the tabs. But, I don't see the endlinks connected to the LCA's at all, which is why I asked what they're attached to.
If that's a '71 K frame then you have the wrong sway bar. It looks straight in the middle, which means it's for a 73+ car and it's supposed to go through the K frame like on the later 73+ K. But it can't do that on a '71 K-frame. Your best bet with that sway bar is to remove it and start over with the right one.
The bump stops are easy to change, they're only held on by a single bolt that you access from the bottom of the LCA. Of course they'll be rusted and the bolt will break out of the rubber, so, you'll need a set of vice grips or something to hold the plate in place while you loosen the nut. Lots of WD-40 will probably be needed.
But yeah, the bump stops are the absolute least of your concerns.
