Shotgunsportsmagazine.com has a company called Shotgun Specialties that has all that stuff. The only thing I would get for sure is their new stock removal wrench. They also have a parts kit, extended carrier release, shell catcher and some other stuff. Though I shoot a Beretta 391, I like the 1100 sporting clays gun, and I think you made a good choice of a soft shooting ,good pointing gun.
I spent 9 hours working a gun show today. I saw a number of 1100s with a trigger shoe on them. Advantages and disadvantage of the trigger shoe? Where do you buy them and how much are they? Several nice 1100s at the show had shoes. Omaha