95 seat rear seat cushion removal?

Feel under the middle of each rear seat - you'll feel a latch. Kneel down on that spot with your knee, push in the latch, and lift up. That side of the seat will come loose. Repeat on the other side. That's it! The back end of the seat is just wedged in under the top seat backs.

As for seat belts, I can only recommend eBay.