I will have this car from Monday morning through to about 8PM.
A few other dealers will get to spend some time with it before it is sadly distroyed : -(
As for the armrest. It is not standard, but from memory (I'm out of the office at the moment) it is around £100-120 - it is bundled in with options such as phone prep low and so you may have it already.
There was a time not too long ago that S-line would always come with the FCA, but many customers complained that they didn't like it, they think it gets in the way - personally it is one of my essential items.