Couple of recommendations, you can order the painted parts through Chicago Harley Davidsion @ 20% off, and expect about 8-12 weeks for them to get through the H-D ordering/painting & shipping process. They must first go to the dealer then they re-ship to your address, they won't drop ship direct from WI.
Install the spoiler first, then the rack to make sure there's adequate clearance between the top of the backrest and the spoiler to prevent wear on the seat. Press on the backrest as if someone was riding, it makes a difference. Just saves some re-drilling and enlarging the holes. Thankfully most errors are covered up when everything is installed. The templates I've seen do not have the newer countoured rack, p/n 79148-06A listed, but the mini rack footprint worked on mine if that's the one you're going use. The templates are by no means the greatest, and you can eyeball and meaure it yourself really. Dry run the install and mark with a grease pencil. Definitely seal up the bottom side of the mounts with a good sealant to prevent any leaks during
frequent washings

and occasional showers. Good