1911 Parts advice please

[Xbonz]

I'm looking to have some minor mod's done to my Colt Gov't model 70 series. I want to change to a beavertail, which I know will require new hammer and I assume sear. If I'm going to do that I might as well change the trigger, slide release, and safety (the pistol is hard chrome and the parts are silver, would like to change them to blue/black). Any recommendations as to what brand parts to purchase? Any other changes that should or must be made? Thanks in advance..