If you intend to be serious about carrying concealed it is not un common to purchase a few different carry rigs before you settle on one that works best for you. My suggestion is to start off with a less expensive rig like an Uncle Mikes IWB ( inside the waistband ) for your G27 which will only set you back about $15.00.
Carry your piece for a while and develop an opinion / preference based on your lifestyle, build, clothing etc. I would highly recommend starting off carrying with your clip fully loaded WITHOUT a round in the chamber at first.
Many people on this forum will tell you they have bought several different carry rigs before finding the one that works best for them. I have purchased about four before settling with an outside the waistband setup from Lou Allessi.
I have a G27 which is my primary carry gun. My cheap Uncle Mikes IWB set up still serves me when in the summer on ocassion when wearing shorts and a t shirt. The gun rides just to the right of my front centerline. I am of average build. I prefer the comfort of an outside the waist holster for everyday all day long carry.
Without getting into exotic skins most popular high quality holsters will set you back about $100 bucks. Good luck and welcome to the forums. This is a great place for information.
Gunzer