please contact www.circlebmw.com
sedan trim (matte chrome) is around $200-250 for 8 pieces (4 door, shifter, light panel, center dash, pass dash.
coupe trims (matte chrome) is around $400-450 for 8 pieces (2 door, 2 rear armrests, light panel, center dash, pass dash.
you do not need the clips since you already have them currently in your vehicle. they are usable.
sedans are VERY easy to change. it should take you no more than 30 mins.
coupes takes more, dash and center pieces are easy like sedans, door pieces requires door panel removal. rear armrests are even more difficult which requires you to remove rear panels.