Wilson parts in a RIA

[GD2A]

Hi Folks,

I want to replace the trigger and safety in my new RIA Tactical FS. I'm replacing the ambi safety with a traditional one. I am going to have the work done by a gunsmith.

Are there any other parts I need to (or should consider) buy(ing)? I have no qualms with the slide stop and hammer so I don't feel compelled to replace those.

I've never modified a gun before so any/all comments/suggestions are welcome.

Thanks!