Sorry ADZ only just seen your question. That welding is all out of sight, under the rear bumper or behind the covers on the wheelarches hence why it is not grinded down.
Axle stands wont help. I need to get the body on the chassis so will have to lift it up & over the engine! thats why it is on big concrete blocks so that I can roll the chassis under it. Unfortunately when rolling the chassis under the body I have to remove the jacks from under the side step brackets. The body will then only be supported by four big wooden beams at the back and the same at the front. While working on the car it has been supported at the back on two beams so two more had to be installed. This is were it went wrong.
Oh well, just need to get a replacement door sill and she is back to being her usual self. Don't expect a massive problem in getting one from the breakers as I don't think it is a very sought after item from a breakers yard.