I just install the seat cushion leather cover(clazzio's) it was horrible. But it's possible with the right technique. 1. I move the front seats forward to get more space. 2. Squat down and face the front windshield 3. Throw your hands back and grab the bottom of the seat. 4. With a firm grip, lift yourself with your legs, and the seat all together. 5. Pop, pop. done. The technique is very similar to "picking up a motorcycle" as found all over youtube.
Here's something from the Repair Manual. They suggest to deal with the two hooks one at a time, and keep your hands close on either side of the hook. I've not done this, but anyway: For re-install: