hi guys, just got a 1911, i settled for a norinco as this is my first 1911 i have some questions regarding tuning her up;f 1. are there any grips that add volume to the back part? i find the grips too small for my tastes. 2. any info regarding them bake on epoxy paints? the gun is blued. and i dont think it will resist rust like a glock 3. the stock sights have to go, any suggestions here? 4. i think the trigger is short, what do you guys think is a good replacement? 5. any suggestions as to what else to tinker? 6. can the hole(grip bushing?) where you screw on the grip screw be replaced?