Ok so based on your post, you have smaller hands. I have medium hands and have no problem gripping the 1911 and shooting with the long trigger. My wife who is short of 5' shoot a 1911 with long trigger and stock grips.
When gripped properly, your palm does not really touch the grips. Your fingers wrap around the front strap, and the meaty part of your palm where the thumb conects, to lay on the back strap and mainspring housing.
If you are gripping the 1911 correctly, you should be able to clearly feel space under your knuckles. I have even shot 1911s without any grips. IMO, thinner grip will not help you achieve a proper grip.
RE: short trigger. It is usually a drop in, but match triggers need to be filed top and bottom of the trigger shoe. Sometimes the trigger bow needs some polishing all around if it doesn't slide freely inside the frame. The end of the trigger bow may need some tiny bending where it contacts the sear, to eliminate trigger play, which I do not do but seen smiths that do it.
|If your really want to replace the grips, I got a thin pair that I never installed.