None of these "Need" to be smithed. On my TSO's I installed a CGW hammer in order to increase the trigger pull weight. I've spent time tuning the trigger pull feel, mostly to create a wall before the break. Out of the box it was a ~1.5lb trigger. It currently is ~2.75lb trigger.
Of the pistols mentioned in this thread, the TSO is the most refined pistol from the factory. It already has a hand fit slide and barrel. It is only single action only and has a really good trigger out of the box.
The TS2 is a close second but will not be as "tight" as the TSO. It does have updated ergonomics.
The Shadow 2 is really a different animal all together as it is a DA/SA gun and thus has different requirements and needs.
Now that they have announced the TSO-2, it will be the pinnacle of the TS lineup going forward. It has the updated ergonomics, a bull barrel, and the same hand fit finishes that make the TSO a winner. I don't know what the MSRP is but I'm assuming it will be $$$.
Cheers,
Toby