I put my stands under the torsion bar the extends into the rear wheel well where the spring plate is.
Just be careful to block the front end if you leave it on the ground. If you jack the front use a 2x4 across the front floor pan just behind the steering mechanism. I have the 3 ton jack stands that have a semicircular cutout. The cutout fits perfectly with the rear and I have chiseled grooves in a 2x4 so they will not slip on the front.
Get yourself a jack pad for raising the car with a regular floor jack. If fits into the square hole where the jack goes.