Yup, in order to install the bars they adjusters need to be completely backed off, and the LCA as far down as it will go.
Now, once the bars are installed, the clips in, etc, you should put at least a few complete turns on the adjusters. But this depends on the size of the torsion bars too, the bigger the bar the fewer turns it will need. And since this is just going to the body shop, and I assume without an engine, its not going to matter much other than to put a little tension on the adjuster bolts. I'd set them in maybe about a 1/3 of the way in, without an engine the car will sit nose high anyway.
